A Stereo-Atlas of Ostracod Shells

edited by R. H. Bate, J. W. Neale, Lesley M. Sheppard

and David J. Siveter

tological Society, London

983

Volum

Editors

Dr R.H. Bate, Department of Palaeontology, British Museum (Natural History), Cromwell Road,

London SW7 5BD.

Prof. J.W. Neale, Department of Geology, The University, Hull HU6 7RH.

Dr Lesley M. Sheppard, SSI (U.K.) Limited, Tannery Hse., Tannery Lane, Send, Woking, Surrey.

Dr David J. Siveter, Department of Geology, The University, Leicester LEI 7RH.

Editorial Board

Dr G. Bonaduce, Stazione Zoologica, 80121 Napoli, Italy.

Dr J.-P. Colin, Esso Production Research - European, 213 Cours Victor Hugo, 33321 Begles,

France.

Dr P. De Deckker, Research School of Pacific Studies, Australian National University, PO Box 4,

Canberra ACT 2600, Australia.

Dr D. van Harten, Universiteit van Amsterdam, Geologisch Instituut, Nieuwe Prinsengracht 130,

Amsterdam, The Netherlands.

Dr I. Purper, Departamento de Paleontologia e Estratigrafia, UFRGS, 90 000 Porto Alegre RS, Brazil.

Dr R.E.L. Schallreuter, Universitat Hamburg, Geologisch-Palaontologisches Institut, Bundesstrasse 55,

D 2000 Hamburg 13, West Germany.

Officers of the British Micropalaeontological Society

Chairman Dr R.H. Bate, Department of Palaeontology, British Museum (Natural History), London

SW7 5BD.

Secretary Dr A.R. Lord, Department of Geology, University College London, Gower Street,

London WC1.

Assistant Secretary Dr P.P.E. Weaver, Institute of Oceanographic Sciences, Wormley, Godaiming,

Surrey, GU8 SUB.

Treasurer Dr J.E. Whittaker, Department of Palaeontology, British Museum (Natural History),

Cromwell Road, London SW7 5BD.

Editor Dr. L.M. Sheppard, SSI (U.K.) Limited, Tannery Hse., Tannery Lane, Send, Woking, Surrey.

Circular Editor Dr E.G. Spinner, Department of Geology, The University, Mappin Street, Sheffield SI.

Conodont Group:

Chairman Dr R.L. Austin, Department of Geology, The University, Southampton.

Secretary Dr A.C. Higgins, Department of Geology, The University, Sheffield SI.

Foraminifera Group:

Chairman Prof. M.B. Hart, Department of Geology, Plymouth Polytechnic, Drake Circus, Plymouth

PL4 8AA.

Secretary Dr M.D. Fewtrell, Erico Research Laboratories Ltd., Lane House, 233-235 Roehampton

Lane, London SW15 4LB.

Microplankton Group:

Chairman Dr J.P.G. Fenton, Robertson Research International Ltd., Ty’n-y-Coed, Llanrhos, Llandudno,

Gwynnedd LL30 ISA.

Secretary Dr S. Molyneux, Institute of Geological Sciences, Ring Road, Halton, Leeds.

Ostracod Group:

Chairman Dr R.C. Whatley, Department of Geology, University College of Wales, Aberystwyth,

Dyfed SY23 3DB.

Secretary Dr. D.J. Horne, Department of Geology, City of London Polytechnic, Walburgh House,

Bigland Street, London E.l.

Palynology Group:

Chairman Mr M.J. Fisher, British National Oil Corporation, 150 St. Vincent Street, Glasgow G2 5LJ.

Secretary Dr D.J. Smith, BP Research Centre, Chertsey Road, Sunbury-on-Thames, Middlesex.

Instructions to Authors

Contributions illustrated by scanning electron micrographs of Ostracoda in stereo-pairs are invited.

Format should follow the style set by the majority of papers in this issue. Descriptive matter apart

from illustrations should be cut to a minimum; preferably each plate should be accompanied by one

page of text only. Blanks to aid in mounting figures for plates may be obtained from any one of the

Editors or Editorial Board. Completed papers should be sent to Dr David J. Siveter.

The front cover shows a male right valve and soft parts, internal view, of

Caboncypris nunkeri De Deckker, 1982

Printed in the UK by UPS Blackpool Ltd., Stanley Road, Blackpool

A Stereo-Atlas of Ostracod Shells

edited by R. H. Bate, J. W. Neale, Lesley M. Sheppard

and David J. Siveter

Volume 10, 1983

Part 1 (pp. 1-74); 30th June, 1983

Part 2 (pp. 75-150); 30th December, 1983

Published by the British Micropalaeontological Society, London

Stereo- Atlas of Ostracod Shells 10, ii

Contents

1 On T allinnellina dissita Schallreuter & Siveter sp. nov. ; by R. E. L. Schallreuter & D. J. Siveter

2 On Harperopsis scripta (Harper); by C. R. Jones & D. J. Siveter

3 On Vittella fecunda Siveter sp. nov.; by D. J. Siveter

4 On Sarlatina merlensis Babinot & Colin; by J. P. Colin

5 On Reginea reginae gen. et sp. nov.; by R. E. L. Schallreuter

6 On Bromidella sarvi Schallreuter; by R. E. L. Schallreuter

7 On Nannocythere pavo (Malcomson); by J. Athersuch & D. J. Horne

8 On Robertsonites tuberculatus (Sars); by D. J. Horne

9 On Baffinicythere howei Hazel; by D. J. Horne & J. E. Whittaker

10 On Polycope foraminosa Hasan sp. nov.; by M. Hasan

11 On Polycope choane Hasan sp. nov.; by M. Hasan

12 On Polycope regina Hasan sp. nov.; by M. Hasan

13 On Cytheretta (Flexus) plicata (V. Munster); by R. H. Weiss

14 On Schizocythere buendensis Triebel; by R. H. Weiss

15 On Femerensia gealbertii Schallreuter gen. et sp. nov.; by R. E. L. Schallreuter

16 On Bollia delgadoi Vannier sp. nov.; by J. Vannier

17 On Hastatellina normandiensis Pribyl; by J. Vannier

18 On Thaerocythere pieta Maybury & Whatley sp. nov.; by C. Maybury & R. C. Whatley

19 On Thaerocythere anisomorphica Whatley & Maybury sp. nov.; by R. C. Whatley &

C. Maybury

20 On Thaerocythere irregulare Whatley & Maybury sp. nov.; by R. C. Whatley & C. Maybury

21 On Thaerocythere regulare Maybury & Whatley sp. nov.; by C. Maybury & R. C. Whatley

22 On Trachyleberis scabrocuneata (Brady); by N. Ikeya & E. E. Compton

23 On Triadocypris spitzbergensis Weitschat; by W. Weitschat

24 On Tanganyikacypris matthesi Kiss; by P. De Deckker & K. Wouters

25 Index for Volume 10, 1983

1

5

13

17

21

25

29

39

53

63

67

71

75

83

91

95

99

103

107

111

115

119

127

139

149

I

4

I

L

I I I

±14

r-t-

T-t-t

Stereo-Atlas of Ostracod Shells 10 (13) 75-82 (1983) Cytheretta plicata (1 of 8)

595.337.14 (118.15) (430.1 : 161.006.51) : 551.351

ON CYTHERETTA (FLEXUS) PLICATA (V. MUNSTER)

by Roseline H. Weiss

(Geologisches Institut, University of Cologne, Germany)

Genus CYTHERETTA G. W. Muller, 1894

Subgenus FLEXUS Neviani, 1928

Type-species (by original designation): Cy there plicata v. Munster, 1830

Diagnosis: A subgenus of Cytheretta with three prominent longitudinal ribs. Ornamentation between the ribs

varies. In dorsal view the carapace tapers gradually towards the anterior, but narrows abruptly

towards the posterior, by this forming a tail-like end. Internal details are mainly the same as for

Cytheretta.

rr

Explanation of Plate 10, 76

Fig. 1, O' car., ext. dors. (GIK 932-1221, 838 pm long); fig. 2,d'car., ext. vent. (GIK 932-1220, 800 pm long).

Scale A (100/Am ; x 115), figs. 1, 2.

-t-T-l--

-M-H

H

4-1—

4

T

it

Stereo-Atlas of Ostracod Shells 10, 77

Cytheretta (Flexus) plicata (v. Munster, 1830)

4

Cytheretta plicata (3 of 8)

1830 Cythere plicata sp. nov. v. Munster, Jb. Min. Geogn. Geol. Petref.-Kunde, 1, 63.

1838 Cytherina plicata (v. Munster); F. A. Roemer, Neues Jb. Min. Geogn. Geol. Petref.-Kunde , 1838, 518, pi. 6, fig. 26.

71928 Cythereis (Flexus) plicata (v. Munster); A. Neviani, Memorie Accad. pont. Nuovi Lincei, Ser. 2, 11, 75.

1952 Cytheretta plicata (v. Munster); E. Triebel, Notizbl. hess. Landesamt. Bodenforsch. Wiesbaden, 6(3), 29, pi. 5, figs. 34, 35.

1956 Cytheretta plicata (v. Munster); H. J. Oertli, Schweiz, palaeont. Abh ., 74(1), 65, pi. 8, fig. 194.

1961 Flexus plicatus (v. Munster); H. V. Howe, Treatise on Invertebrate Paleontology , part Q, 271.

1963 Cytheretta (Flexus) plicata (v. Munster); Van Morkhoven, Post-Palaeozoic Ostracoda, II, 232, fig. 1.

1972 Flexus plicatus (v. Munster); M. C. Keen, Bull. Brit. Mus. nat. Hist. (Geol.), 21(6), 339, pi. 22, fig. 1.

1975 Cytheretta (Flexus) plicata (v. Munster); M. Faupel, Gottinger Arb. Geol Palaont., 17, 21, pi. 2, figs. 3a-c.

Type specimens:

Type locality:

Figured specimens:

The Ostracoda from the collections of v. Munster are presumed lost.

Astrup near Osnabriick, Germany. Upper Oligocene.

Geologisches Institut, University of Cologne, nos. 932-1216 (9 LV: PI. 10, 80, fig. 1), 932-1217

(9 RV : PI. 10, 82, fig. 1), 932-1220 (o' car.: PI. 10, 76, fig. 2), 932-1221 {d car.: PI. 10, 76, fig. 1),

932-1222 (c/RV: PI. 10, 78, fig. 2), 932-1223 (o'!. V: PI. 10, 78, fig. 1), 932-1224 (c/RV: PI. 10, 82,

fig. 2), 932-1225 (c/LV: PI. 10, 80, fig. 2).

Explanation of Plate 10, 78

Fig. 1 ,cfLV, int. lat. (GIK 932-1223, 813 /aiu long) ; fig. 2,c/RV, int. lat. (GIK 932-1222, 813 pm long). Both valves were isolated from

the same carapace.

Scale A (100 pm; x 118), figs. 1, 2.

TT

-1-i-

Stereo- Atlas of Ostracod Shells 10, 76

Cy there tta plicata (2 of 8)

■1T

,_H_

-i-L.

Stereo-Atlas of Ostracod Shells 10, 78

Cytheretta plicata (4 of 8)

n — j-

1T1

Stereo- Atlas of Ostracod Shells 10, 79 Cytheretta plicata (5 of 8)

Figured specimens: All specimens were collected by Prof. E. K. Kempf in 1961 at a depth of 54.2-55.5 m from shaft

( contd .) Tonisberg near Krefeld, Germany (German Nat. Grid Ref.: R 34033, H 97555; long. 6°29'E,

lat. 51° 25' N); Upper Oligocene; Sphenolithus ciperoensis Zone (NP25) according to Benedek &

Muller ( Neues Jb. Geol. Palaont. Mh., 1974, 388); fine sand (grain size 0.2-0.06 mm = 92.5%)

according to Kempf ( Niederrhein , 35, 15, 1968) with abundant Mollusca and foraminifera; shallow

marine (5-20 m water depth) according to Goerlich ( Fortschr . Geol. Rheinld Westf., 1, 220).

Size: (A)

(B)

Table 1.

Measurements on specimens (N = no. of specimens; x = mean; L = length; H

W = width); A = valves; B = carapaces.

height;

Explanation of Plate 10, 80

Fig. 1,$ LV, ext. lat. (GIK 932-1216, 825 pm long); fig. 2, rfLV, ext. lat. (GIK 932-1225, 863 Mm long). Plate 10, 80, fig. 1 and Plate

10, 82, fig. 1 represent both valves of one single carapace.

Scale A (100yu,m; x 112), figs. 1, 2.

i i

±_1.

+--t -

- -1-4-

Stereo- Atlas of Ostracod Shells 10, 81

Cytheretta plicata (7 of 8)

Diagnosis:

Remarks:

Distribution:

Acknowledgement:

As for the subgenus. Left valve distinctly larger than right valve. Anterior part of lowermost rib

ascending parallel to the anterior margin. Ornamentation between the ribs consists of fine pits that

are arranged in longitudinal rows on the ventral side of the carapace. Otherwise these pits are

grouped together, especially along the anterior and posterior margin where they are also larger.

Posterior end of both valves with four or five blunt teeth.

Sexual dimorphism distinct, the males being lower, more elongate and in dorsal view narrower.

Differences discussed in detail by Weiss ( Palaeontographica , Abt. A, in press).

The investigated specimens from Tonisberg agree absolutely with material from the Astrup

type-locality stored in the Senckenberg-Museum, Frankfurt. Many of the previous records

described under this name by various authors (Reuss 1850; Bosquet 1852; Jones 1857 ; Egger 1858;

Brady 1878; Lienenklaus 1896; Neviani 1928) represent different species.

Upper Oligocene: Astrup near Osnabriick, Germany (v. Munster 1830, Lienenklaus 1894, Triebel

1952, Oertli 1956, Keen 1972, Puri 1974, op cit.) ; Doberg near Biinde, Germany (Lienenklaus

1894, Triebel 1952, op. cit.); Freden near Alfeld, Giintersen near Gottingen, Neuer Wirth near

Osnabriick, Krefeld, Germany (Lienenklaus 1894, op. cit.); Hollkopf near Glimmerode (Basin of

Kassel), Germany (Faupel 1975, op. cit.); Ahnegraben, Nieder-Kaufungen (Basin of Kassel),

Germany (Speyer 1863); Shaft Rossenray (Lower Rhine Basin), Germany (Goerlich 1958,

van den Bold 1963); Shaft Kapellen (Lower Rhine Basin), Germany (Ellermann 1958); Shaft

Tonisberg (Lower Rhine Basin), Germany (this paper).

? Lower Oligocene: Brandhorst near Biinde, Germany (Lienenklaus 1894, op. cit.)

Thanks are due to the Deutsche Forschungsgemeinschaft for providing the Cambridge Stereoscan

180.

Explanation of Plate 10, 82

Fig. 1,9 RV, ext. lat. (GIK 932-1217, 825 pm long); fig. 2,d'RV, ext. lat. (GIK 932-1224, 850 pm long). Plate 10, 80, fig. 2 and Plate 10,

82, fig. 2 represent both valves of one single carapace.

Scale A (lOO^m; x 112), figs. 1, 2.

-TT-

.iL.

I I

— : n-

Li

i I I

.Lll.

Stereo-Atlas of Ostracod Shells 10, 80

Cytheretta plicata (6 of 8)

ri-

-M-

J_L

j Stereo- Atlas of Ostracod Shells 10, 82 Cytheretta plicata (8 of 8)

H IT

IT IT

I I

I

r

1-1-

-r-t-f

Stereo-Atlas of Ostracod Shells 10 (14) 83-90 (1983)

595.337.14 (118.15) (430.1 : 161.006.51) : 551.351

Schizocythere buendensis (1 of 8)

ON SCHIZOCYTHERE BUENDENSIS TRIEBEL

by Roseline H. Weiss

(Geologisches Institut, University of Cologne, Germany)

? 1894

? 1900

v* 1950

non 1975

Schizocythere buendensis Triebel, 1950

Cythere acuticosta Egger; E. Lienenklaus, Z. dt. geol. Ges., 46, 213 ( non Cythere acuticosta Egger, 1858).

Cythere truncata Reuss; E. Lienenklaus, Ibid, 52, 529 (non Cypridina truncata Reuss, 1850).

Schizocythere biindensis sp. nov. E. Triebel, Senckenbergiana, 31, 323, pi. 3, figs. 20-22.

Schizocythere biindensis Triebel; M. Faupel, Gottinger Arb . Geol. Paldont., 17, 50, pi. 9, fig. 4.

Holotype: Forschungsinstitut Senckenberg, Frankfurt, X/e 1582, ?LV.

[Para types: Forschungsinstitut Senckenberg, Frankfurt, X/e 1583-1588].

Type locality: Doberg near Biinde (Westphalia), Germany; Upper Oligocene.

Explanation of Plate 10, 84

Fig. 1,9 car., ext. dors. (GIK 932-1529, 575 pm long); fig. 2,d'car„ ext. dors. (GIK 932-1530, 525 long).

Scale A (lOO^urn; x 169), figs. 1, 2.

-t-f-i-

.JiJ-

-H4-

Stereo- Atlas of Ostracod Shells 10, 85

Figured specimens:

Schizocythere buendensis (3 of 8)

Geologisches Institut, University of Cologne, nos. 932-1527 (9RV: PI. 10, 88, fig. 1), 932-1527

9 LV: PI. 10, 90, fig. 1), 932-1529 ( 9 car. : PI. 10, 84, fig. 1), 932-1530 (rf car. : PI. 10, 84, fig. 2),

932-1531 ( 9 car. : PI. 10, 86, fig. 1), 932-1532 (o' car. : PI. 10, 86, fig. 2), 932-1533 ( 9 RV: PI. 10, 88,

fig. 2), 932-1534 (o' LV: PI. 10, 90, fig. 2).

All specimens were collected by Prof. E. K. Kempf in 1961 at a depth of

54.2-55.5 m from shaft Tonisberg near Krefeld, Germany (German Nat.

Grid. Ref.: R 34033, H 97555; long. 6°29'E, lat. 51°25'N); Upper

Oligocene, Sphenolithus ciperoensis Zone (NP25) according to Benedek &

Muller (Neues Jb. Geol. Paldont. Mh., 1974, 388); fine sand (grain size 0.2-

0.06 mm = 92.5%) with abundant Mollusca and foraminifera according to

Kempf (Niederrhein, 35, fig. 2, 1968); shallow marine (5-20 m water depth)

according to Goerlich (Fortschr. Geol. Rheinld West}., 1, 220, 1958).

Text-fig. 1. Schizocythere buendensis

Triebel ( 9 RV) ; structure of anterior mar-

gin, internal, transmitted light, s: selvage;

fl.: flange; o.l.o.c. + o.l.: outer line of

concrescence and outer list (lip); i.l.o.c. +

i.m.: inner line of concrescence and inner

margin (GIK 932-1533).

Explanation of Plate 10, 86

Fig. 1,9 car., ext. vent. (GIK 932-1531, 563 /i.m long); fig. 2,c/car., ext. vent. (GIK 932-1532, 525 pm long).

Scale A (100/xm; x 169), figs. 1, 2.

■Tr-

-tt-

— I — Ll_ .

TT.

I i I

,L±X

1

I

— hr

i

Stereo- Atlas of Ostracod Shells 10, 84

J

i

u

-i-r

Schizocythere buendensis (2 of 8)

i-tf

i- + t-

“IT

TT

-14

TT

+- + + -

Stereo-Atlas of Ostracod Shells 10, 86

Schizocythere buendensis (4 of 8)

I I I

.ilJ.

T+~t

Stereo-Atlas of Ostracod Shells 10, 87

Schizocythere buendensis (5 of 8)

Size: (A)

(B)

Diagnosis:

Table 1 . Measurements on specimens (N = no. of specimens ; x = mean ; L = length ; H = height ;

W = width); A - valves, B = carapaces.

In lateral view valves subtrapezoidal, anterior end broadly and obliquely rounded, posterior end

with a small caudal process, situated subcentrally. Left valve distinctly larger than right valve. Outer

surface dominated by two longitudinal ridges. In lateral view the real dorsal margin is hidden by the

upper ridge. The lower ridge shows a tendency to become wing-like. Parallel to the anterior margin a

low ridge, connecting eye tubercle with lower ridge. Ornamentation between the ridges consists of

large pits and at least two prominent tubercles: one situated centrally in front of the adductor scars,

another even more prominent one postero-dorsally. In dorsal view it is evident that the dorsal

margin is flanked by high longitudinal ridges. From the dorsal ridge of the left valve four low and

short ribs run towards the dorsal margin. Eye tubercles distinct.

Explanation of Plate 10, 88

Fig. 1,9 RV, ext. lat. (GIK 932-1527, 563 pim long); fig. 2, 9 RV, int. lat. (GIK 932-1533, 525 gtn long). Plate 10, 88, fig. 1 and Plate 10,

90, fig. 1 represent both valves of one single carapace.

Scale A (100 pirn; x 144), fig. 1; scale B (100 pirn; xl58), fig. 2.

-t-t-t

-t-t-H

7

rr

Stereo-Atlas of Ostracod Shells 10, 89

Schizocythere buendensis (7 of 8)

+ +-•4

Remarks: Sexual dimorphism pronounced. Shell morphotype B being shorter, lower, and in dorsal view

narrower than morphotype A. According to investigations on Recent species of Schizocythere by

Hanai ( J . Paleont., 44, no. 4, fig. 4b) and Schornikov ( Sb . Rab., Inst. Biol. Morya,Dalrevost. Nauch.

Tsent., Akad. Nauk. SSSR, 1, 137-214, 1974) the males are represented by morphotype B.

Two types of normal pore canals are present: simple ones and those with sieve-plate. The

simple pore canals are of small diameter, few in number, scattered over elevated parts of the shell,

and with openings surrounded by a rim. The second type of normal pore canals is of larger diameter,

opening into the pits of the surface with a sieve-plate that bears a well-defined subcentral opening

(discussed in detail by Weiss, Palaeontographica, Abt. A, in press).

The investigated specimens from Tonisberg agree absolutely with material from the type-

locality Doberg near Biinde that is stored in the Senckenberg Museum, Frankfurt.

Distribution: Upper Oligocene: Biinde, Germany (Lienenklaus 1894, op. cit.); Doberg near Biinde, Astrup near

Osnabriick, Germany (Triebel 1950, op. cit.); Niederkaufungen near Kassel, Germany (Triebel

1950, op. cit.); Shaft Rossenray (Lower Rhine Basin), Germany (Goerlich 1958); Shaft Kapallen

(Lower Rhine Basin), Germany (Ellerman 1958); Wiepke, Germany (Lienenklaus 1900, op. cit.);

Shaft Tonisberg (Lower Rhine Basin), Germany (this paper).

Middle Oligocene: Biinde, Germany (Lienenklaus 1894, op. cit.); Sdllingen, Germany

(Lienenklaus 1900, op. cit.).

Lower Oligocene: Brandhorst near Biinde, Germany (Lienenklaus 1894, op. cit.); Lattorf,

Germany (Lienenklaus 1900, op. cit.).

Acknowledgement: Thanks are due to the Deutsche Forschungsgemeinschaft for providing the Cambridge Stereoscan

180.

Explanation of Plate 10, 90

Fig. 1,9 LV, ext. lat. (GIK 932-1527, 563 pirn long); fig. 2,cTLV, int. lat. (GIK 932-1534, 538 pun long).

Scale A (100 pirn; x 144), fig. 1; scale B (100 pirn; x 158), fig. 2.

xu

i i

‘“IT'

TT‘

t-r-

-ttt-

Stereo-Atlas of Ostracod Shells 10, 88

Schizocythere buendensis (6 of 8)

htt-

LLL

-4— H-

Stereo-Atlas of Ostracod Shells 10, 90

■“n

i

-—14.

I

Schizocythere buendensis (8 of 8)

-4-4

--L1J.

Stereo-Atlas of Ostracod Shells 10 (15) 91-94 (1983)

595.336.1 (113.312) (430.1 : 161.011.54) : 551.351 + 552.55

Femerensia gealbertii (1 of 4)

ON FEMERENSIA GEALBERTII gen. et sp. nov.

by Roger E. L. Schallreuter

(University of Hamburg, German Federal Republic)

Genus FEMERENSIA gen. nov.

Type-species: Femerensia gealbertii sp. nov.

Derivation of name:

Diagnosis:

Femeren, the old name for Fehmarn, the type locality.

A medium-sized genus of Ampletochilininae. S2 as a sulcal depression with a round muscle spot in

its center. A low, ridge-like crista running from the spine-like end of the velum at the anterior

cardinal corner to below S2. Velar frill very broad, even at anterior cardinal corner. Antrum strongly

convex, very narrow and very long, ending anterodorsally. No marginal sculpture. Lateral surface

reticulate. Velar frill with puncta and tubules, and its surface striated parallel to margin.

Remarks:

Femerensia belongs to the Ampletochilininae, which is characterized by nonsulcate or nearly non-

sulcate members. Femerensia is distinguished from all other ampletochilinine genera (Schallreuter,

Palaeontographica (A) 149 (4/6), 142, 1975) mainly by the presence of the crista. Pentagonochilina

Ivanova (Paleont. z. 1971 (1), 62-66, 1971) is similar in some respects (very broad velar frill with

Explanation of Plate 10, 92

Fig. 1, posteriorly and dorsally incomplete 9LV (holotype, GPIMH 2733, 939 /^m long), ext. lat.; figs. 2-3, posteriorly incomplete and

slightly depressed 9 RV (paratype, GPIMH 2734, 914 gun long): fig. 2, ext. lat.; fig. 3, ext. lat. detail of ornament.

Scale A (100 yum; x 69), fig. 1; scale B (100 yum; x 62), fig. 2; scale C (50yum; x 200), fig. 3.

Tr

-rr

-t-t-i

-m--i

444

-n-

-M- -t —

Stereo- Atlas of Ostracod Shells 10, 93

Femerensia gealbertii (3 of 4)

Remarks (contd.): tubules and puncta, eurychilinine antrum) but differs by the restricted, centroventrally tongue-like

elevated frill and the broader botulus. Cystomatochilina Jaanusson (Bull. geol. Instn Univ. Uppsala

37 (3/4) =Publ. Palaeont. Instn Univ. Uppsala 17, 254-256, 1957) also possesses a very broad,

entire velar frill but, in addition, has a strong preadductorial node (op. cit. fig. 16). Within the

eurychilinines, which are characterized by forms with a distinct S2 (pit or graben), a crista occurs for

example in Piretella and Hesperidella (Schallreuter, op. cit., pis. 26(5;-28(7)).

Oepikium also possesses a very broad velar frill, but the frill has a rather high position at the

marginal surface, which led Jaanusson to the conclusion that the frill is a histium (op. cit., p. 231,

406). Oepikium differs from Femerensia by lacking a crista, by the restricted velar frill, the long

sigmoidal S2, and the marginal row of spines; similar is the anterodorsal spine-like end of the frill

(Schallreuter, op. cit., pi. 29(8), fig. 3).

Femerensia gealbertii sp. nov.

Geologisch-Palaontologisches Institut und Museum, University of Hamburg, no. 2733; a pos-

teriorly and dorsally incomplete? LV.

[Paratype: no. 2734].

Staberhuk, Isle of Fehmarn (Baltic Sea), Germany; lat. 54° 24.5' N, long. 11° 19' E. Upper Viruan

Backsteinkalk erratic boulder (no. Stal; 1B1 type), middle Ordovician.

In honour of Prof. Dr. Gerhard K. B. Alberti, University of Hamburg.

Geologisch-Palaontologisches Institut und Museum, University of Hamburg (GPIMH) nos. 2733

(holotype posteriorly and dorsally incomplete ?LV: PI. 10, 92, fig. 1, PI. 10, 94, figs. 2, 3) and 2734

(posteriorly incomplete? RV: PI. 10, 92, figs. 2, 3, PI. 10, 94, fig. 1). Both from the type locality;

coll, by the author in 1980.

As for the genus.

Known only from type locality, middle Ordovician, Germany.

Holotype:

Type locality:

Derivation of name

Figured specimens

Diagnosis:

Distribution:

Explanation of Plate 10, 94

Fig. 1 ,9 RV (paratype, GPIMH 2734), int. lat.; figs. 2-3,9LV (holotype, GPIMH 2733); fig. 2, int. lat.; fig. 3, int. lat. detail of velum and

antrum.

Scale A (100 ^m; x 60), fig. 1; scale B (100 ^m; x 67), fig. 2; scale C (50/i.m; x 225), fig. 3.

■Tr-

■tp

Stereo- Atlas of Ostracod Shells 10, 92

Femerensia gealbertii (2 of 4)

-44

Femerensia gealbertii (4 of 4)

— ti~~

L J_

4- + + -

Stereo- Atlas of Ostracod Shells 10, 94

f-r

t-

T

I '

I I

-H-

I I

1 I

I l

i I

I I

I 1

I I

1 I

I I

TT

rr

i i

■ XL-

i i

i t

i i

TT

I I

XL

I I

Stereo-Atlas of Ostracod Shells 10 (16) 95-98 (1983) Bollia delgadoi (1 of 4)

595.336.12 (113.313) (44 : 162.005.48 + 469 : 162.009.40) : 551.35 + 552 + 52

ON BOLLIA DELGADOI VANNIER sp. nov.

by Jean Vannier

(University of Rennes, France )

Bollia delgadoi sp. nov.

1972 Bollia sp. aff. henningsmoeni: J. Nion in Robardet et al., Ann. Soc. Geol. Nord, 92, (3), 126-128, pi. 20, figs. 1-4.

Holotype: Institut de Geologie, University of Rennes (IGR), coll. no. 30561/1A; ?9 RV.

[Paratypes: (IGR) coll. nos. 30553/1A, 30556/1A, 30562/1A, 30564/ 1A, 30566/2A.]

Type locality: Mudstones from the Zuvinhal section (samples BU-D-29-30), Bu§aco syncline, Portugal (cf.

F. Paris, Mem. Soc. geol. mineral. Bretagne, 26, 1981); between Cacemes and Palheiros, lat.

40° 20' 15" N, long. 8° 20' 48" W. Upper part of the Louredo Formation, upper Caradoc

(? Marshbrookian), Ordovician.

Derivation of name: In honour of J. F. N. Delgado.

Explanation of Plate 10, 96

Figs. 1, 2, ? ?RV (holotype, IGR 30561/1A, 2028/am long): fig. 1, ext. lat.; fig. 2, ext. post. obi. Figs. 3, 4, ?d'LV (paratype IGR 30566/2A,

1628/am long): fig. 3, ext. post, obi.; fig. 4, ext. lat.

Scale A (1000/am; X 35), figs. 1-4.

Stereo-Atlas of Ostracod Shells 10, 97

Bollia delgadoi (3 of 4)

Figured specimens:

Diagnosis:

Remarks:

Distribution:

Institut de Geologie, University of Rennes (IGR), coll. nos. 30561/ 1A (? 9 RV: PI. 10, 96, figs.

1, 2; PI. 10, 98, fig. 2) and 30566/ 2A (?d’LV: PI. 10, 96, figs. 3, 4; PI. 10, 98, fig. 4); from the type

locality. IGR no. 7070/b (?cf LV: PI. 10, 98, figs. 1, 3), from calcareous nodules from the Raguenez

Member, Gres de Kermeur Formation, Caradoc; lie de l’Aber, Crozon Peninsula, Finistere,

France; lat. 48° 13' 31" N, long. 4°24' W. All the figured specimens are latex casts from external

moulds.

Median-sized Bollia (adults 1.75-2.25 mm long), Sub- elliptical in outline with a short dorsal

margin. Two prominent lobes (LI and L2) connected ventrally to form a U-shaped “zygal ridge”

surrounding a deep median sulcus (S2). LI is swollen near the dorsal margin but becomes narrower

just before its dorsal termination. LI is longer and wider than L2. Zygal ridge slightly convex, over-

hanging a marked subcircular depression. Extralobate area slightly convex. Possible dimorphism

expressed as a wider posterior extralobate area in heteromorphs.

Bollia delgadoi differs from the type-species Bollia bicollina Jones & Holl, 1886 (cf. Siveter, The

Silurian In : A stratigraphical index of British Ostracoda, Geol. J. Special Issue 8, 1978), from the

British lower Wenlock, by a less marked supramarginal ridge and by more prominent lobes. In

Bollia bicollina the two lobes are not parallel.

Bollia henningsmoeni Nion [cf. Nionm Robardet etal., Ann. Soc. Geol. Nord, 92, (3), 1972]

is distinguished from Bollia delgadoi by the smaller size of adults (1-30-1 -60mm long). In Bollia

delgadoi the zygal ridge is more prominent than that of Bollia henningsmoeni. In Bollia hennings-

moeni the ventral connection of lobes LI and L2 is less marked and the zygal ridge is not markedly

separated from the extralobate area. The same type of dismorphism (wider posterior extralobate

area in heteromorphs) occurs in the two species.

Armorican Massif, France: Crozon Peninsula and Normandy (Cotentin). Portugal (Bu?aco syn-

cline). Caradoc, Upper Ordovician.

Explanation of Plate 10, 98

Figs. 1, 3, ?d'LV (IGR 7070/b, 1942/am long): fig. 1, ext. lat.; fig. 3, ext. vent. obi. Fig. 2, ??RV (holotype IGR 30561/ 1A, 2028/j.m long),

ext. obi. Fig. 4, ?d'LV (paratype IGR 30566/2A, 1628/am long), ext. vent.

Scale A (1000/am; x 35), figs. 1-4.

T + -1

I

t+t

+ + H

-JiJ

I

+ + +

I

!

I

-1-1

I

1

I

t-r-

i

Stereo-Atlas of Ostracod Shells 10, 96

Bollia delgadoi (2 of 4)

— n

i

--I4

I

4--H

hrr-

t-t-t--

i

L.J-U.

I

+ -

I

Stereo- Atlas of Ostracod Shells 10, 98

I I I

J.1J

-J-4

Stereo-Atlas of Ostracod Shells 10 (17) 99-102 (1983)

595.336.13 (113.313) (44 : 162.002.49 + 469 : 162.009.40) : 551.35 + 552.52

Hastatellina normandiensis (1 of 4)

ON HASTATELLINA NORMANDIENSIS PRIBYL

by Jean Vannier

(University of Rennes, France )

Hastatellina normandiensis Pribyl, 1975

1972 Ceratopsis sp. aif.hastata (Barrande); J. Nion/rc Robardet etal.Ann. Soc. Geol.Nord, 92, (3), 123, 124, 128, pi. 19, figs. 1-8.

1975 Hastatellina normandiensis; Pribyl, Palaont. Z., 49, (1/2), 11-23, text-fig. 2, 1-4.

1979 Hastatellina normandiensis; PFibyl, Acta Musei Nationalis Pragae, 23B, (1-2), 61.

Holotype: Institut de Geologie, University of Rennes, (IGR), coll. no. 7001/b, LV; designated by Pribyl (1975)

from the material figured by Nion in Robardet et al. (1972).

Type-locality: Saint-Germain-sur-Ay (Manche), Normandie, France; lat. 49° 13' 54" N, long. 1° 39' 1" W. La

Sangsuriere Formation, Caradocian mudstones, Ordovician.

Figured specimens: Institut de Geologie, University of Rennes (IGR), coll. nos. 30559/1A (cfRV:Pl. 10, 100, fig. 1),

30559/2A (c/LV: PI. 10, 100, fig. 2), 30560/1A ( 9 RV: PI. 10, 100, fig. 3;P1. 10, 102, fig. 6) and

30553/1A (9 LV: PI. 10, 102, figs. 4, 5) all from the Zuvinhal section (samples nos. BU-D-29-30),

Bugaco syncline, Portugal (cf. Paris; Mem. Soc. geol. mineral. Bretagne, 26, 1981); between

Cacemes and Palheiros, lat. 40° 20' 1 5" N, long. 8° 20' 48" W. Upper part of the Louredo Formation,

upper Caradoc (?Marshbrookian). IGR no. 7001/b (9LV:P1. 10, 102, figs. 1-3) from the type

locality. All the figured specimens are latex casts from external moulds.

r+-t-

Explanation of Plate 10, 100

Fig. Lc/RV, ext. lat., spine-like process broken (IGR 30559/1A, 2236/u.m long); fig. 2,cfLV, ext. vent., lat. surface incomplete (IGR

30559/2A); fig. 3, 9RV, ext. vent., lat surface incomplete (IGR 30560/1A).

Scale A (1000/u.m; x 36), figs. 1-3.

it-1—

+ + H

4-1-

_l _L — I

-j-n

Stereo- Atlas of Ostracod Shells 10, 101

Hastatellina normandiensis (3 of 4)

Diagnosis: Medium to large- sized (adults 2-3 mm long); quadrilobate with unequal lobes. LI dorsally modified

into a very long, fimbriate spine-like process projected vertically, slightly arched towards the pos-

terior, with a wide base. L2 short, separated from LI by a practically obsolete sulcus SI. Main sulcus

S2, deep, oblique. L3 and L4 connected to form a strongly convex posterior lobe. Obsolete sulcus S3

expressed as a small dorsal depression. Lobes connected ventrally. Antral dimorphism: hetero-

morphs with an admarginal antrum parallel to both free edge and to a short velum extending along

the ventral lobe and anteriorly; tecnomorphs with a flat to slightly concave adventral area and a

faintly developed ridge along the ventral lobe. Heteromorphs have a less convex ventral lobe than

tecnomorphs.

Remarks: Two other species of Hastatellina PFibyl, 1975 are known from the upper Ordovician of Bohemia

(cf. Pribyl, 1975, 1979): Hastatellina hastata (Barrande) from the Vinice Formation (middle

Caradoc) and Hastatellina posthastata PFibyl from the Bohdalec Formation (upper Caradoc). Both

species have deeper sulci (SI and S2) than those of//, normandiensis and no ornamentation occurs

along their spine-like process. At present, Hastatellina grandispinosa (Hessland) from the lower

Ordovician of Baltoscandia is considered as the oldest congeneric species. The very distinctive spine-

like process of//, normandiensis could be compared to the fimbriate modified part of LI that occurs

in several Ordovician species; for example, Ceratopsis chambersi (Miller) from the upper Caradoc

of the U.S.A. [cf. Warshauer; Bull. Amer. Paleont. 67, (287), 443-456, 1975], Ceratopsis

duftonensis (Reed) from the Caradoc (Longvillian) of Northern England and Ceratopsis britannica

Spjelnaes from Upper Llandeilian to basal Caradocian age, Wales (cf. Siveter; A Stratigraphical

Index of British Ostracoda, Geol. J. Special Issue 8, 1978).

Distribution: Armorican Massif, France (Normandy and Crozon Peninsula), and Portugal (Bugaco syncline);

Caradoc, upper Ordovician (cf. Nion in Robardet et al., 1972 for fuller details).

+ + +

rr

r r

-| L L_

I I I

Explanation of Plate 10, 102

Figs. 1-3, 9LV (holotype, IGR 7001/b, 2080/j.m long): fig. 1, ext. lat.; fig. 2, ext. ant. obi.; fig. 3, ext. vent. obi. Figs. 4, 5,9LV (IGR

30553/1A): fig. 4, ext. ant. obi.; fig. 5, ext. vent. Fig. 6,9RV, ext. lat., lat. surface incomplete (IGR 30560/1A).

Scale A (1000/u.m; x 25), figs. 1-3; scale B (1000 pun; x 27), figs. 4-6.

i

■nr

i i

L-L-L

■1— l-T-

Stereo-Atlas of Ostracod Shells 10, 100

i— r i-

Hastatellina normandiensis (2 of 4)

J_L

-14-

|-

I

+--H +

Stereo-Atlas of Ostracod Shells 10, 102 Hastatellina normandiensis (4 of 4) j

t-r

4 — L

I I

-r-t-

±14.

+ + -»

Stereo-Atlas of Ostracod Shells 10 (18) 103-106 (1983) Thaerocythere pieta (1 of 4)

595.337.14 (118.22) (44:162.002.48) : 551.351 + 552.51

ON THAEROCYTHERE PIETA MAYBURY & WHATLEY sp. nov.

by C. Maybury & R. C. Whatley

(University College of Wales, Aberystwyth)

Thaerocythere pieta sp. nov.

Holotype:

Type locality:

Derivation of name:

Brit. Mus. (Nat. Hist.) no. OS 5504,9 LV.

[Paratypes: Brit. Mus. (Nat. Hist.) nos. OS 5505-OS 5506, OS 5508-OS 5509, OS 6752-

OS 6753],

Shell-rich sand, Le Temple du Cerisier, SW of Rennes, NW France; Upper Pliocene, Redonian.

Latin, pietas, meaning devout with respect to the relationship between this species and its type

locality, the Temple of the Cherry Tree.

Explanation of Plate 10, 104

Fig. 1,9 LV, ext. lat. (holotype, OS 5504, 910/xm long); fig. 2,9RV, ext. lat. (paratype, OS 5505, 900 /xm long); fig. 3,c/LV, ext. lat.

(paratype, OS 5506, 960 gm long).

Scale A (200 /xm; x 67), figs. 1-3.

-t-t-i

+ + 1

-ii-

Stereo- Atlas of Ostracod Shells 10, 105

.444

Thaerocythere pieta (3 of 4)

- + + +

Figured specimens:

Diagnosis:

Remarks:

Distribution :

Brit. Mus. (Nat. Hist.) nos. OS 5504 (holotype, 9 LV: PI. 10, 104, fig. 1), OS 5505 ( 9 RV: PI. 10, 104,

fig. 2), OS 5506 (c/LV: PI. 10, 104, fig. 3), OS 5508 ((/RV: PI. 10, 106, fig. 1), OS 6752 (9car.:

PI. 10, 106, fig. 2), OS 6753 (tf car. : PI. 10, 106, fig. 3), OS 5509 (9 RV: PI. 10, 106, fig. 4). All from

the type locality and type horizon.

A large, subrectangular, coarsely and rather irregularly reticulate Thaerocythere with prominent

straight dorsal and ventral ridges, each terminating in irregularly-shaped nodes posteriorly.

Subcentral tubercle and eye tubercle especially conspicuous in females. Hinge holamphidont and

strongly developed.

This species resembles T. nodoreticulata (Bassiouni) ( Roemeriana , 3, 28-30, pi. 3, figs. 4-5, 1962) as

both species have coarsely reticulate and nodose ornament. They differ with respect to size ( T .

nodoreticulata, 770 pm long), shape and ornamental detail (Bassiouni’s species having notably

sinuous dorsal and ventral ridges).

Twelve Thaerocythere species have been recovered from the Redonian of NW France

studied by the authors; but none of these are represented in the 9 Upper Oligocene and Neogene

species from northern Belgium figured by Wouters ( Een Systematische, Biostratigrafische en

Paleobiologische studie van de Ostracoda uit Miocene afzettingen in Noord-Belgie, unpub. PhD

thesis, Univ. Leuven, 190-205, pi. 42, figs. 1-8, pi. 43, fig. 1, 1978).

A common species in the Redonian sediments of NW France from Apigne (Gite d’Apigne, Apigne

Borehole II and Le Temple du Cerisier), L’Aubier, L’Orchere Pincourt, La Planche au Bouin and

Palluau 1 and 2 (See J.-P. Margerel, Les Foraminiferes du Redonien. Systematique, Repartition

stratigraphique , Paleoecologie, Nantes I, 1-207, 1968 for geographical and stratigraphical details).

The genus in the Upper Pliocene of N W France is common, while it is rare in the contemporaneous

deposits of St. Erth, Cornwall.

Explanation of Plate 10, 106

Fig. l,cfRV, int. lat. (paratype, OS 5508, 910 /xm long); fig. 2, 9 car., ext. dors, (paratype, OS 6752, 810/xm long); fig. 3,c/car., ext. dors.

(paratype, OS 6753, 900 pm long); fig. 4,9RV, ext. vent, (paratype, OS 5509, 860 /xm long).

Scale A (200 /xm; x 67), figs. 1-4.

1L

1

I

]_

X

I

1-

1 hT

Stereo-Atlas of Ostracod Shells 10, 104

-i

Thaerocythere pieta (2 of 4)

1—1-1-

h-M--

LX

-44

I-

Stereo-Atlas of Ostracod Shells 10, 106

Thaerocythere pieta (4 of 4)

t -r

r

4 — L

J.1J

T-l-

++~t

Stereo-Atlas of Ostracod Shells 10 (19) 107-110 (1983) Thaerocythere anisomorphica (1 of 4)

595.337.14 (118.22) (44 : 162.002.48) : 551.351 + 552.51

ON THAEROCYTHERE ANISOMORPHICA WHATLEY & MAYBURY sp. nov

by R. C. Whatley & C. Maybury

(University College of Wales, Aberystwyth)

Thaerocythere anisomorphica sp. nov.

Holotype:

Type locality :

Derivation of name:

Brit. Mus. (Nat. Hist.) no. OS 6754,$ LV.

[Paratypes: Brit. Mus. (Nat. Hist.) nos. OS 6755, OS 6782, OS 6783, OS 7714, OS 7729.]

Shell-rich sand, Le Temple du Cerisier, SW of Rennes, NW France; Upper Pliocene, Redonian.

Latin, with reference to the marked difference in the shape and ornament of the two valves.

Explanation of Plate 10, 108

Fig. Lc/RV, ext. lat. (paratype, OS 6782, 810 pm long); fig. 2,$LV, ext. lat. (holotype, OS 6754, 750^01 long); fig. 3,$RV, ext. lat.

(paratype, OS 6755, 740 /xm long).

Scale A (200 ^m; x 78), figs. 1-3.

rr

-t-r — i-

++H-

H

4-1-

44

Stereo-Atlas of Ostracod Shells 10, 109

Thaerocythere anisomorphica (3 of 4)

+ -H +

Figured specimens:

Diagnosis:

Remarks:

Distribution:

Brit. Mus. (Nat. Hist.) nos. OS 6782 (d* RV: PI. 10, 108, fig. 1), OS 6754 (holotype, $LV; PI. 10,

108, fig. 2), OS 6755 ($RV: PI. 10, 108, fig. 3), OS 6783 (cTRV: PI. 10, 110, fig. 1), OS 7714 ($

car.: PI. 10, 110, fig. 2), OS 7729 (c/ car. : PI. 10, fig. 3). All from the type locality and type horizon.

A species of Thaerocythere with a prominent vertical ridge posteriorly delimiting the lateral surface

in right valve, absent in left valve. Oral incurvature most pronounced in right valve. Broad rims

around free margins which are spinose, particularly posteriorly. Reticulate with horizontal muri

dominant. Subcentral tubercle poorly developed.

This species most closely resembles T. irregulare Whatley & Maybury ( Stereo-Atlas of Ostracod

Shells, 10, 111-114, 1983) in that the 2 female valves are different in shape and ornament. This

phenomenon, however, is more pronounced in T. anisomorphica where differences between the left

and right valves can be observed in both sexes.

Upper Pliocene, Redonian of NW France at Apigne (Gite d’Apigne, Apigne Borehole II and Le

Temple du Cerisier), Beugnon, Falleron, L’Aubier, L’Orchere Pincourt, Bas Briace (Nord),

Palluau 1 and 2 and Reneauleau. For geographical and stratigraphical details see J.-P. Margerel, Les

Foraminiferes du Redonien. Systematique, Repartition stratigraphique, Paleoecologie, Nantes I,

1-207, 1968.

!

Explanation of Plate 10, 110

Fig. TcCRV, int. lat. (paratype, OS 6783, 730 pm long); fig. 2,$car., ext. dors, (paratype, OS 7714, 730 p.m long); fig. 3,d'car., ext. dors.

(paratype, OS 7729, 750 pm long).

Scale A (200yu.m; x 78), figs. 1-3.

I I I

.1 L_l.

•f + T-

Stereo-Atlas of Ostracod Shells 10, 108

' i

i i

J_l

j-

-i-r

Thaerocythere anisomorphica (2 of 4)

L_J_

-i-t

i-

Stereo- Atlas of Ostracod Shells 10, 110

Thaerocythere anisomorphica (4 of 4)

t-r

4-L

-r-t-

r-t-t

Stereo-Atlas of Ostracod Shells 10 (20) 111-114 (1983) Thaerocythere irregulare (1 of 4)

595.337.14 (118.22) (44 : 162.002.48) : 551.351 + 552.51

ON THAEROCYTHERE IRREGULARE WHATLEY & MAYBURY sp. nov.

by R. C. Whatley & C. Maybury

(University College of Wales, Aberystwyth)

Thaerocythere irregulare sp. nov.

Holotype:

Type locality:

Derivation of name:

Brit. Mus. (Nat. Hist.) no. OS 9137, 9 LV.

[Paratypes: Brit. Mus. (Nat. Hist.) nos. OS 9138-OS 9139, OS 12103-OS 12104].

Fine glauconitic, grey sand, depth 26.7-32.4 m, Apigne (Borehole II), SW of Rennes, NW France;

Upper Pliocene, Redonian.

Latin, referring to the rather irregular reticulum of this species.

Explanation of Plate 10, 112

Fig. 1,9LV, ext. lat. (holotype, OS 9137, 770/xm long); fig. 2,9RV, ext. lat. (paratype, OS 9138, 740 ^.m long); fig. 3,c/LV, ext. lat.

(paratype, OS 9139, 780^ long).

Scale A (200 /u,m; x 80), figs. 1-3.

rr

-t-r — i

-M-H

JiJ

T

rr

+ E-4 —

Stereo- Atlas of Ostracod Shells 10, 113

Thaerocythere irregulare (3 of 4)

Figured specimens:

Diagnosis:

Remarks:

Distribution :

Brit. Mus. (Nat. Hist.) nos. OS 9137 (holotype, 9 LV: PI. 10, 112, fig. 1), OS 9138 ( 9 RV: PI. 10, 112,

fig. 2), OS 9139 (tf LV: PI. 10, 112, fig. 3), OS 12103 (d RV: PI. 10, 114, fig. 1), OS 12104 (tfRV:

PI. 10, 114, figs. 2-4). All from the type locality and type horizon.

A species of Thaerocythere with a reticulum of irregularly disposed fossae. The eye tubercle is least

well developed in the right valve and the reticulae are obliquely ordered posteriorly in the female

right valve but not in the female left valve. The socket of the anteromedian element of the right valve

hinge and the corresponding tooth in the left valve are comparatively small in relation to other

species of this genus.

This species resembles T. regulare Maybury & Whatley (Stereo-Atlas of Ostracod Shells, 10, 1 15—

118, 1983) in shape and outline, but differs in ornamentation; that of T. irregulare being much less

regular. The anteromedian element of the hinge is also relatively and comparatively larger in the

latter species.

A rare species in the Upper Pliocene, Redonian deposits of N W France, which has only been re-

covered from the type locality. See J.-P. Margerel, Les Foraminiferes du Redonien. Systematique,

Repartition stratigraphique , Paleoecologie, Nantes I, 1-207, 1968 for geographical and strati-

graphical details.

Explanation of Plate 10, 114

Fig. 1 ^RV, ext. lat. (paratype OS 12103, 800 /u,m long) ; figs. 2-4,d'RV (paratype, OS 12104, 800 gm long) : fig. 2, int. lat. ; fig. 3, muse,

sc.; fig. 4, ant. hinge element.

Scale A (200 ^m; x 80), figs. 1, 2; scale B (40 ^m; x 400), fig. 3; scale C (100 ^.m; x 160), fig. 4.

LlX

— t— l-T-

Stereo-Atlas of Ostracod Shells 10, 112

Thaerocythere irregulare (2 of 4)

i

L

I

r

— i-ri-

h-M-

TT

~n

LLL

4— H-

-L±J

4—l-

Stereo-Atlas of Ostracod Shells 10 (21) 115-118 (1983)

595.337.14 (118.22) (44 : 162.002.48) : 551.351 +552.51

Thaerocythere regulare (1 of 4)

-r-t-i

ON THAEROCYTHERE REGULARE MAYBURY & WHATLEY sp. nov.

by C. Maybury & R. C. Whatley

(University College of Wales, Aberystwyth)

Thaerocythere regulare sp. nov.

Holotype:

Type locality:

Derivation of name:

Brit. Mus. (Nat. Hist.) no. OS 9131, 9RV.

[Paratypes: Brit. Mus. (Nat. Hist.) nos. OS 9132-OS 9136].

Shell-rich sand, Le Temple du Cerisier, SW of Rennes, NW France; Upper Pliocene, Redonian.

Latin, referring to the regular nature of the reticulate ornament.

Explanation of Plate 10, 116

Fig. l,d'RV, ext. lat. (paratype, OS 9132, 790 gm long); fig. 2,9LV, ext. lat. (paratype, OS 9133, 760 /4m long); fig. 3, 9RV, ext. lat.

(holotype, OS 9131, 790 long).

Scale A (200 p,m; x 80), figs. 1-3.

rr

1+-

++-

H

LL

44

+ -I-1

Stereo- Atlas of Ostracod Shells 10, 117

Thaerocythere regulare (3 of 4)

++-

Figured specimens:

Diagnosis:

Remarks:

Distribution :

Brit. Mus. (Nat. Hist.) nos. OS 9132 ( d RV: PI. 10, 116, fig. 1), OS 9133 ( 9 LV: PI. 10, 116, fig. 2),

OS 9131 (holotype, 9 RV: PI. 10, 1 16, fig. 3), OS 9134 ( 9 RV: PI. 10, 118, fig. 1), OS 9135(9 car.:

PI. 10, 118, fig. 2), OS 9136 (d car.: PI. 10, 1 18, fig. 3). All from the type locality and type horizon.

A Thaerocythere species with a regularly reticulate ornament of subovate to subcircular fossae and

smooth, rounded muri. Horizontal muri dominate medianly; anteriorly and posteriorly, vertical

muri dominate. The subcentral tubercle is not elevated but is marked by smaller than usual sub-

rounded fossae and a celated area. Anteromarginal rim also celated. Valves somewhat acuminate

posteriorly.

T. regulare and T. irregulare Whatley & Maybury (Stereo Atlas of Ostracod Shells, 10, 111-114,

1983) depart from Hazel’s type description for the genus (see J. E. Hazel, U.S. Geol. Survey, Prof.

Paper, Washington, D.C. , no. 564, 25, 1967) in that they lack well developed dorsal and ventral ribs.

Nonetheless, these two species clearly belong to the genus.

Upper Pliocene, Redonian of N W France from Apigne Borehole II, Beugnon, L’ Orchere Pincourt,

L’Orchere Route, Le Temple du Cerisier, Palluau 2 and Late Upper Pliocene of St. Erth, England.

See J.-P. Margerel, Les Foraminiferes du Redonien. Systematique, Repartition stratigraphique ,

Paleoecologie, Nantes I, 1-207, 1968 for geographical and stratigraphical details of the French

material.

Explanation of Plate 10, 118

Fig. 1,9 RV, ext. lat. (paratype, OS 9134, 800 yu,m long); fig. 2, 9 car., ext. dors, (paratype, OS 9135, 750 /xm long); fig. 3, d car., ext. dors.

(paratype, OS 9136, 790 ^.m long).

Scale A (200 p.m; x 80), figs. 1-3.

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Stereo- Atlas of Ostracod Shells 10, 116

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Thaerocythere regulare (2 of 4)

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Thaerocythere regulare (4 of 4)

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Stereo-Atlas of Ostracod Shells 10 (22) 119-126 (1983)

595.337.14 (119.9) (520 : 161.133.35 + 161.133.34) : 551.313.2 + 551.35

Trachyleberis scabrocuneata (1 of 8)

ON TRACHYLEBERIS SCABROCUNEATA (BRADY)

by Noriyuki Ikeya & Ellen E. Compton

(Shizuoka University, Shizuoka, Japan & U.S. Geological Survey, Reston, Virginia)

non 1898

1913

1948

1953

TRACHYLEBERIS BRADY, 1898

Type-species: Cy there scabrocuneata Brady, 1880

1898 Trachyleberis , gen. nov. Brady; Trans, zool. Soc. Lond., 14, 144.

Diagnosis: Subrectangular in lateral view; dorsal and ventral margins nearly straight; anterior and posterior

margins compressed, anterior rounded and posterior acuminate; valves symmetrical; ornament

spinose or tuberculate; prominent eye and subcentral tubercles; wide duplicature; smooth inner

margin; hinge holamphidont; four ovoid vertical adductors with V-shaped frontal scar; strongly

dimorphic, males more narrow and elongate.

Trachyleberis scabrocuneata (Brady, 1880)

Cy there scabrocuneata n.sp. Brady \Rept. Voyage Challenger , Zoology , 1(3), 103 (pars), pi. 17, figs. 5e, f, (?) figs. 5a-d;

( non pi. 23, figs. 2a-c).

Trachyleberis scabrocuneata (Brady); Brady, Trans, zool. Soc. Lond., 14, 444, 445, pi. 47, figs. 1-7, 18-25.

Cythereis yamigera [sic] (Brady); Kajiyama, Zool. Mag. Tokyo (Dobutsugaku-zasshi), 25, 12, pi. 1, figs. 64-66.

Trachyleberis scabrocuneata (Brady); Sylvester-Bradley, Jl. Paleont. 22(6), 794, 795, pi. 122, figs. 13-18.

Trachyleberis scabrocuneata (Brady); Harding & Sylvester-Bradley, Brit. Mus. (Nat. Hist.), Bull., Zool., 2(1), 11-15,

pi. 1, figs. 5, 6, 8, pi. 2, figs. 5, 6, 9, 10, text-figs. 20-25.

1880

Explanation of Plate 10, 120

Figs. 1, 2,d'RV (IGSU 0-107, 980pm long); fig. 1, ext. lat. ; fig. 2, dors.; figs. 3, 4,cfLV (IGSU 0-108, 1000 pun long); fig. 3, ext. lat. ;

fig. 4, dors.; fig. 5,9LV, ext. lat., detail of sieve pore on central region (IGSU 0-110).

Scale A (100 /am; x 66), figs. 1-4; scale B (lpm; x4400), fig. 5.

+ + -i

+ + H

+ + 4

1961

1963

Stereo-Atlas of Ostracod Shells 10, 121 Trachyleberis scabrocuneata (3 of 8)

1961 Trachyleberis scabrocuneata (Brady); Hanai, Jour. Fac. Sci. Univ. Tokyo, sec. 2, 13(2), 373, text-fig. 14, figs. 2a, b.

Trachyleberis scabrocuneata (Brady) ; Sylvester-Bradley, in: Moore, R. C. (Edit.), Treatise on Invertebrate Paleontology ,

Pt. Q, Arthropoda, 3, 334, 335, fig. 259 (la-g).

Trachyleberis scabrocuneata (Brady); Ishizaki, Jap. Jour. Geol. Geogr., 34(1), 31-33, (pars), pi. 2, figs. 20a-d; (non pi. 2,

fig- 12).

Trachyleberis scabrocuneata (Brady) ; Hanai, in: New Illustrated Encyclopedia of the Fauna of Japan, 2, 455, fig. 423 (1-3).

Trachyleberis scabrocuneata (Brady); Ishizaki, Tohoku Univ., Sci. Rept., 2nd ser. (Geol.), 37(2), 156, pi. 18, fig. 9.

Trachyleberis scabrocuneata (Brady); Ishizaki, Ibid., 40(1), 38, pi. 9, figs. 13, 14.

Trachyleberis scabrocuneata (Brady); Ishizaki, Ibid., 41(2), 221, 222, pi. 26, fig. 8.

Trachyleberis scabrocuneata (Brady); Ishizaki, Ibid., 43(1), 92, 93, pi. 4. fig. 16.

Cythere scabrocuneata Brady; Puri & Hulings, Brit. Mus. (Nat. Hist), Bull., Zool., 29(5), 289, pi. 26, figs. 6, 8.

Trachyleberis scabrocuneata (Brady); Okubo, Res. Bull. Okayama Shujitsu Jun. Coll., (9), 149-151, figs. 4, 7a-e.

Trachyleberis scabrocuneata (Brady); Hu, Petr. Geol. Taiwan, (16), (?)66, pi. 3, figs. 1, 2.

Trachyleberis scabrocuneata (Brady); Hu, Quart. Jour. Taiwan Museum, 34(1, 2), 67, pi. 1, figs. 1-3.

Trachyleberis scabrocuneata (Brady) ; Hou et al., Geol. Publ. House, Peking, China, 223, 224, pi. 83, figs. 1-5, text-figs.

63a, b.

In the H.M.S. Challenger Collections, British Museum (Natural History). Harding & Sylvester-

Bradley (1953:12) designated two lectotypes (1952.12.10.1,2) and twelve paralectotypes

(1948.3.10.1-5 and 1952.12.10.3-9) for the species. In their re-examination of material from the

Challenger Expedition, Puri & Hulings (1976:289) noted that specimen 1952.12.10.2 had been

lost; and they also pointed out that two specimens, a right and a left valve (1974.342), were topo-

types. Museum records indicate that none of the collection has been lost; the lectotype is a female,

and there are three additional paralectotypes (1952.12.10.10-12) (G. A. Boxshall, BM(NH),

written communication, 1983).

1965

1966

1968

1969

1971

1976

1979

1981

1982

Type specimens:

Explanation of Plate 10, 122

Figs. 1, 2,9 RV (IGSU 0-109, 900 pm long); fig. 1, ext. lat.; fig. 2, int. lat., detail of vent, region; figs. 3, 4,9LV (IGSU 0-110, 900 pm

long): fig. 3, ext. lat. ; fig. 4, int. lat., detail of vent, region; fig. 5,9car. ext. dors., detail showing surface ornamentation, normal pores

and setae on RV-centrodors. region (IGSU O-lll, 925pm long).

Scale A (100pm; x 66), figs. 1, 3; scale B (100pm; x 120), figs. 2, 4; scale C (10pm; x 660), fig. 5.

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i Stereo-Atlas of Ostracod Shells 10, 122

Stereo-Atlas of Ostracod Shells 10, 120

Trachyleberis scabrocuneata (4 of 8)

Stereo-Atlas of Ostracod Shells 10, 123 Trachyleberis scabrocuneata (5 of 8)

Type locality: H.M.S. Challenger Station 233b (lat. 34° 2' N, long. 133° 35' E), Setonaiki, Japan (Holocene mud,

27.4 m).

Figured specimens: Institute of Geosciences, Shizuoka University (IGSU) nos. 0-107 (c^RV: PI. 10, 120, figs. 1, 2;

PI. 10, 126, figs. 3,4), 0-108 (o'LV : PI. 10, 120, figs. 3, 4; PI. 10, 126, figs. 1,2), 0-109 (9LV: PI.

10, 122, figs. 1,2; PI. 10, 126, fig. 5), 0-110 (9 RV: PI. 10, 120, fig. 5; PI. 10, 122, figs. 3, 4; PI. 10,

124, figs. 3, 4), O-lll ( 9 car.: PI. 10, 122, fig. 5; PI. 10, 124, figs. 1, 2, 5). 0-107, 108 are the same

individual from Nakanoumi, Estuary, Shimane Prefecture, Japan (lat. 35° 28' 46" N, long.

133° 09' 25" E) in 3.3-7 m water depth. 0-119, 110, the same individual, and 111 were collected by

I. Okubo from Shibukawa, Okayama Prefecture, Japan (lat. 34° 27.1' N, long. 133° 54.2' E) in a

mud-subtidal zone of 10-20 m water depth.

Diagnosis: Valve surfaces covered with mammillate pustules that tend to be transverse in the posterodorsal

region, concentric at the muscle scar node, and longitudinal at the ventral margin. A sharp antero-

dorsal ridge begins at the eye tubercle and continues as a row of spines along the anteroventral region.

Two distinct rows of spines define the anterior margin and the posteroventral margin, the latter

spines are more compressed and blade-like. Large sieve-type normal pore canals with compound

setal tassles cover the carapace, and the sieve plates appear to have eccentric setal perforation. Soft

parts have been described and illustrated by Kajiyama ( 1913), Harding & Sylvester-Bradley ( 1953)

and Okubo (1979).

Remarks: Brady (1880) illustrates four specimens of Trachyleberis scabrocuneata , of which only the male

(pi. 17, figs. 5e, f) can positively be assigned to the species. The specimens figured on pi. 23 are

smaller and possess a different ornamentation and shape than specimens from Japan ; these are con-

sidered to represent another species. Brady (1880, 103) only tentatively included these in the species

as a “variety”. The ornamentation of the female figured by Brady (pi. 17, figs. 5a-d) is different

enough to only questionably include it in the species.

Explanation of Plate 10, 124

Figs. 1, 2,9car. (IGSU O-lll): fig. 1, ext. vent.; fig. 2, ext. dors.; figs. 3, 4,9LV, ext. lat. (IGSU 0-110): fig. 3, detail of normal pore and

seta on central region; fig. 4, detail of normal pore opening on spine on central region; fig. 5, 9car., ext. vent., detail of anterovent.

region (IGSU-O-111).

Scale A (100/xm; x 66), figs. 1, 2; scale B (1 ^m; x 4400), fig. 3; scale C (lOpim; x 2400), fig. 4; scale D (10/j.m; x 1500), fig. 5.

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Stereo- Atlas of Ostracod Shells 10, 125

Trachyleberis scabrocuneata (7 of 8)

Remarks (cont.):

Distribution :

T. scabrocuneata is easily distinguished from other species of the genus that occur in Japanese

waters. T. niitsumai Ishizaki, 1971 is probably the most similar in shape, appearance, and size; how-

ever, it differs from T. scabrocuneata in that the valve surfaces are covered with an irregular and

weak reticulation, and there are three rows of spines along the anterior margin. Another similar

species, T. lytteltonensis Harding & Sylvester-Bradley, 1953, from New Zealand, differs by having

larger, fewer, and less well-defined pustulose ornamentation. This species does not have the distinct

anterodorsal ridge of T. scabrocuneata ; also, the posteroventral spines are rounded.

Harding & Sylvester-Bradley (1953, 3) demonstrate that although Brady (1898, 444)

described the soft parts of T. lytteltonensis when he erected Trachyleberis as a new genus, T.

scabrocuneata remains the type-species, as its original description was based on specimens dredged

by the Challenger in the Inland Sea of Japan.

Kajiyama’s trivial name, yamigera, is a typographical error for hamigera.

All localities are in Japan, except where noted.

Miocene: Yatsuo Formation, Sunakosaka Member, Ishikawa Prefecture; Hatatate and

Moniwa formations, Miyagi Prefecture.

Upper Pleistocene: Anden and Shibikawa formations, Akita Prefecture; Jizodo and Narita

formations, Chiba Prefecture; Furuyua Formation, Shizuoka Prefecture; Hungchun Limestone,

Hungchun Peninsula, Republic of China; Funing Formation, Jiangsu Province, Peoples Republic of

China.

Holocene: the type locality in the Inland Sea; Hosonosu Sand Bank, Fukaura and Shibukawa,

Okayama Prefecture; Uranouchi Bay, Kochi Prefecture; Nakanoumi Estuary, Shimane Prefecture;

Hamana Bay and Off Bay, Shizuoka Prefecture; Misaki and Aburatsubo Cove, Kanagawa Pre-

fecture; Ubara Coast, Chiba Prefecture; Aomori Bay, Aomori Prefecture.

Current research by one of us (N.I.) has produced several new Holocene occurrences on the

islands of Kyushu and Hokkaido, suggesting that T. scabrocuneata will be found in many suitable

habitats around Japan.

■TP'

■TP

.XL.

Explanation of Plate 10, 126

Figs. 1, 2,dLV (IGSU 0-108): fig. 1, int. lat.; fig. 2, int. lat. hinge; figs. 3, 4,d'RV (IGSU 0-107): fig. 3, int. lat.; fig. 4, int. lat. hinge;

fig. 5, 9LV, int. muse. sc. (IGSU 0-109).

Scale A (100 Mm; x 66), figs. 1, 3; scale B (100 /im; x 100), figs. 2, 4; scale C (lOO^m; x 300), fig. 5.

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Stereo-Atlas of Ostracod Shells 10, 124

Trachyleberis scabrocuneata (6 of 8)

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Stereo- Atlas of Ostracod Shells 10, 126

Trachyleberis scabrocuneata (8 of 8)

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Stereo-Atlas of Ostracod Shells 10 (23) 127-138 (1983)

595.339 (116.11) (484.81 : 162.017.78) : 551.35

Triadocypris spitzbergensis (1 of 12)

ON TRIADOCYPRIS SPITZBERGENSIS WEITSCHAT

by Wolfgang Weitschat

(University of Hamburg, German Federal Republic)

Genus TRIADOCYPRIS Weitschat, 1983

Type-species (by original designation): Triadocypris spitzbergensis Weitschat, 1983

Diagnosis:

Myodocopid with carapace 2.9-3. 1 mm long; oval in lateral view. With small rostrum and narrow

rostral incisure. Posterior margin forming angle at midpoint. Left valve overlaps right. With delicate

dentition along dorsal margin of each valve. Ornamentation composed of small, closely space pits.

Gills well- developed, with three lobes on each side. Lateral eye with about 20 ommatidia.

Explanation of Plate 10, 128

Fig. 1, car., ext. lat. (GPIHM 2559, 3.1 mm long); fig. 2, car., ext. dors. (GPIHM 2559); fig. 3, rostrum and rostral-incisure (GPIHM

2565); fig. 4, caudal process (GPIHM 2565).

Scale A (300 /urn; x 25), fig. 1; scale B (300 /xm; x 30), fig. 2; scale C (300 gm; x 50), fig. 3; scale D (300 pan; x 45), fig. 4.

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Stereo-Atlas of Ostracod Shells 10, 129

Triadocypris spitzbergensis (3 of 12)

Triadocypris spitzbergensis Weitschat, 1983

1983 Triadocypris spitzbergensis sp. nov. W. Weitschat, Palaont. Z., 57, 3/4, 309-323, 10 figs.

Holotype: Geologisch-Palaontologisches Institut und Museum, University of Hamburg ( GPIHM) no. 2558.

[Paratypes: GPIHM nos. 2559-2565].

Type locality: Sticky Keep Formation, Lower Triassic ( sobrobustus Zone); Flowerdalen, Spitsbergen, lat. 78° N,

long. 17° E.

Figured specimens: Geologisch-Palaontologisches Institut und Museum (GPIHM) nos. 2558 (holotype, car.: PI. 10,

130, fig. 1), 2559 (PI. 10, 128, figs. 1,2), 2560 (PI. 10, 130, figs. 2, 3; PI. 10, 136, fig. 3), 2561 (PI. 10,

132, figs. 1, 2), 2562 (PI. 10, 134, figs. 1-3), 2563 (PI. 10, 136, figs. 1, 2). 2564 (PI. 10, 138, figs.

1-3), 2565 (PI. 10, 128, figs. 3, 4).

All specimens are from the type locality.

Diagnosis: As for the genus.

Explanation of Plate 10, 130

Fig. 1, RV, with gill-like structures, epipodial appendage of 5th limb and 7th limb (holotype, GPIHM 2558); fig. 2, 1st antenna and

protopodite of 2nd antenna (GPIHM 2560); fig. 3, detail 1st antenna, with five dorsal bristles on the 2nd joint and two on the 3rd joint

(GPIHM 2560).

Scale A (300 pm\ x 28), fig. 1; scale B (300yum; x 32), fig. 2; scale C (100 ju,m; x 85), fig. 3.

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Stereo-Atlas of Ostracod Shells 10, 128

Triadocypris spitzbergensis (2 of 12)

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Stereo-Atlas of Ostracod Shells 10, 130

Triadocypris spitzbergensis (4 of 12)

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Stereo- Atlas of Ostracod Shells 10, 131 Triadocypris spitzbergensis (5 of 12)

Remarks: The ostracod material was obtained during a search for conodonts upon disolution of calcareous

nodules from the Lower Triassic of Spitsbergen. All the specimens are complete carapaces. They

were preserved in one and only one concretion, because the original calcium carbonate of the

ostracod-shells has been replaced by apatite. In some specimens the chitinous appendages are also

phosphatized, leading to a preservation of the body and the appendage structures in minute detail.

From the morphology of the carapace and the appendage structures Triadocypris belongs to

the Recent widespread suborder of Myodocopida. It differs from all known genera in that three

clearly separated gills are developed. They are situated posteriorly on both sides of the body. Gill-

like structures are only known from the Recent families of Cypridinidae and Cylindroleberididae.

While they are rudimentary in the cypridinids, the members of the Cylindroleberididae usually have

7-8 well- separated gills. The phylogenetic position of our fossil form seems to lie between these two

families. That the Cylindroleberididae originated in the Mesozoic via such forms from the

Cypridinidae appears plausible. Despite the differences mentioned above, the appendage structures

of our Triassic species are nearly identical to those from Recent times. We must conclude therefore

that this highly specialized ostracod group was at a similar stage of organization 230 million years

ago, so that the derivation of the different families of the Myodocopa must have taken place much

earlier than is normally assumed.

Perhaps the most remarkable preservation is that found in specimen no. 2560, in which the

lateral eye is visible (PI. 10, 136, fig. 3). Among Recent ostracods only the Myodocopida develop

lateral eyes. These are button- to disc- shaped structures which are located at the base of the 1st

antenna and are composed of 4-50 single elements (the so-called ommatidia). In our fossil form the

button-shaped lateral eye is about 0.2 mm in diameter and it is also located near the base of the 1st

antenna. The single ommatids dissolved so that separate holes are left behind ; there might have been

15-20 of them.

Explanation of Plate 10, 132

Fig. 1, epipodial appendage of 5th limb (GPIHM 2561) ; fig. 2 enlarged detail, epipodial appendage 5th limb, with four large bristles sur-

rounded by fine hairs (GPIHM 2561).

Scale A (100 p,m; x 130), fig. 1; scale B (lO^um; x 890), fig. 2.

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Stereo-Atlas of Ostracod Shells 10, 133

Triadocypris spitzbergensis (7 of 12)

Text-fig. 1, Map of Svalbard- Archipelago showing the

sampling point.

Text-fig. 2, Muscle-scar pattern of

Triadocypris spitzbergensis.

Explanation of Plate 10, 134

Fig. 1, 7th limb (GPIHM 2562); fig. 2 enlarged detail 7th limb, showing distinct annulation and irregularly spaced bristles (GPIHM

2562); fig. 3, enlarged detail 7th limb, two bristles (GPIHM 2562).

Scale A (100 p,m; x 80), fig. 1; scale B (100 p.m; x 210), fig. 2; scale C (10/xm; x 870), fig. 3.

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Stereo- Atlas of Ostracod Shells 10, 132

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Stereo- Atlas of Ostracod Shells 10, 134

Triadocypris spitzbergensis (8 of 12)

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Stereo- Atlas of Ostracod Shells 10, 135

Triadocypris spitzbergensis (9 of 12)

Text-fig. 3, Size distribution of instars and adults in Triadocypris spitzbergensis.

Explanation of Plate 10, 136

Fig. 1, lat. view of the gills- dorsal below - (GPIHM 2563); fig. 2, post, view of the gills, showing three lobes sitting on each side of the

body - dorsal below - (GPIHM 2563); fig. 3, lateral eye and base of the 1st antenna; the eye showing separate holes where about 20

ommatidia were formerly located (GPIHM 2560).

Scale A (300/u.m; x40), fig. 1; scale B (300 gm; x 45), fig. 2; scale C (100 ^m; x 170), fig. 3.

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Stereo- Atlas of Ostracod Shells 10, 137

Triadocypris spitzbergensis (11 of 12)

Explanation of Plate 10, 138

Fig. 1, mouth-region, with ? mouth-opening and one large bristle (GPIHM 2564); fig. 2, ? mouth opening (GPIHM 2564); fig. 3, comb

of fine bristles sitting opposite to the ?mouth-opening (GPIHM 2564).

Scale A (30/xm; x 350), fig. 1; scale B (lO^um; x 910), fig. 2; scale C (10/xm; x 1100), fig. 3.

I I I

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Stereo-Atlas of Ostracod Shells 10, 136

Triadocypris spitzbergensis (10 of 12)

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Stereo- Atlas of Ostracod Shells 10, 138

Triadocypris spitzbergensis (12 of 12)

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Stereo-Atlas of Ostracod Shells 10 (24) 139-148 (1983)

595.337.12 (119.9) (678 : 163.029.8-17) 551.312 + 552.51

Tanganyikacypris matthesi (1 of 10)

ON TANGANYIKACYPRIS MATTHESI KISS

by Patrick De Deckker & Karel Wouters

(Australian National University, Canberra & Koninklijk Belgisch Instituut voor Natuurwetenschappen, Brussels)

Subfamily TANGANYIKACYPRIDINAE subfam. nov.

Type-genus: TANGANYIKACYPRIS Kiss, 1961

Diagnosis:

Remarks:

Obvious characteristics of this new subfamily are: very thick shell; fulcral point anterior to and

above adductor muscle scars; uppermost adductor scar of similar size to others (in most other

Cyprididae it is the largest); numerous radial pore canals; antennula with weakly developed Rome

organ and thick bristle on last segment, a and /3 bristles on mandibular palp stilet-like and y bristle

much thicker and tufted, thoracopoda I with outer seta on last segment thick and almost as long as

claw and another inner seta half-length of claw plus penultimate segment with 2 inner unequal but

long setae; furca with long equal claws and short almost equal setae; base of furcal shaft forked and

short seta on posterior end of body in males (at least).

Kiss (1961) placed Tanganyikacypris in the Cyprididae and Hartmann & Puri (Mitt. Hamb. Zool.

Mus. Inst. 70, 7-73, 1974) queried its position in the Cypridinae. It is felt necessary to establish here

a new subfamily, Tanganyikacypridinae subfam. nov., to acknowledge the numerous differences

which this genus possesses preventing it from being included in all other subfamilies of the

Cyprididae.

Explanation of Plate 10, 140

Fig. 1 , 9 R V, ext. lat. (OC1097, 1.57mm long); fig. 2,cfRV, ext. lat. (OC1098, 1.54 mm long).

Scale A (500 /xm; x 50), figs. 1, 2.

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Stereo-Atlas of Ostracod ShellslO, 141 Tanganyikacypris matthesi (3 of 10)

Genus TANGANYIKACYPRIS Kiss, 1961

Type-species (by original designation): Tanganyikacypris matthesi Kiss, 1961

Diagnosis: Shell: very thick and heavily calcified valves; narrow anterior and posterior vestibula; selvage

prominent all around; numerous straight to slightly sinuous, sometimes branched marginal pore

canals; normal pores simple; hinge adont; muscle scar pattern with a striking, deep fulcral point;

frontal row of adductor scars in a vertical row of 3 plus a small one below and another large one split

in two behind middle one; mandibular scars the largest; weak sexual dimorphism.

Anatomy: antennula with thick spinose bristle on last segment and weakly developed Rome

organ on 2nd segment; sexually dimorphic antenna with 1 thick smooth claw (5 length of others) on

penultimate segment in 9 and comb-like teeth on shorter claw on distal segment incfplus atrophied

“natatory” setae in both sexes; mandibular palp with stilet-like a and / 3 bristles (/ 3 bristle the largest)

and -y bristle much thicker and tufted; maxillula with 2 almost smooth Zahnborsten and a thick,

spiny bristle anterior to them on 3rd lobe; sexually dimorphic palps of maxilla: in male, palps

symmetrical (data from Kiss) and in female setae on palp all of the same length but middle one twice

the width of others plus protopodite with one tufted bristle up to 3 times longer than most others;

rake-like organ with 7 stout, sharp teeth with inner one bifid ; 4th and 5th segment of thoracopoda I

almost fused and an outer seta on 6th segment almost as long as the claw; distal portion of thora-

copoda II with pincers and one hook-shaped and serrate seta and a much longer smooth one; furca

with 2 equal claws more than 3 times the length of the 2 almost equal setae ; plus anterior half of shaft

with 5 groups of spinules; furcal attachment forked at both extremities; lateral lobe of hemipenis

tongue-like; Zenker organ with numerous rosettes and both ends funnel-shaped; one short seta on

posterior end of body at least in male.

Tanganyikacypris matthesi Kiss, 1961

Tanganyikacypris matthesi n. sp., Kiss, Bull. Inst, frang. Afrique noire, ser. A., 23, 19, figs. 1-14.

1961

Explanation of Plate 10, 142

Fig. Fd'LV, ext. lat. (OC1099, 1.49mm long); fig. 2,d'RV, int. lat. (OC1100, 1.44mm long).

Scale A (500 ^m; x 52), figs. 1, 2.

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Stereo-Atlas of Ostracod Shells 10, 140

Tanganyikacypris matthesi (2 of 10)

1-1-1-

t— M-

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Stereo-Atlas of Ostracod Shells 10, 142

Tanganyikacypris matthesi (4 of 10)

X±J

Figured specimens:

Stereo-Atlas of Ostracod Shells 10, 143 Tanganyikacypris matthesi (5 of 10)

Holotype: Museum of Central Africa, Tervuren, Belgium, dissected 9, 50879 (soft parts and 2 valves in balsam

in slide). Left valve (length 1506 pm, height 981 pm), right valve (length 1543 pm, height 1049 pm).

Type locality: Lake Tanganyika, off Uvira (Zaire), from the gut content of the fishes Lamprologus cunningtoni and

Xelotilapia sima.

Koninklijk Belgisch Instituut voor Natuurwetenschappen, Brussels, nos. OC1097 ( 9 RV: PI. 10,

140, fig. 1), OC 1098 (cTRV: PI. 10, 140, fig. 2), OC 1099 (rfLV: PI. 10, 142, fig. 1), OC 1100

(d RV : PI. 10, 142, fig. 2; PI. 10, 144, fig. 2), OC1101(9LV: PI. 10, 144, fig. 1), OC1102(9 RV:

PI. 10, 144, fig. 3), OC1103 ( 9 car.: PI. 10, 146, fig. 1), OC1104 ( d car.: PI. 10, 146, fig. 2),

OC1 105 (dear.: PI. 10, 146, fig. 3), OC1106(9 LV: Text-fig. 1A), OC1107( 9RV: Text-fig. IB).

All specimens are from the southern point of the delta of the River Malagarasi (Tanzania),

collected on February 24th, 1947 by the “Expedition hydrobiologique au Lac Tanganyika”. The

sample, registered under no. 144, was a dry sample of beach sand.

Museum for Central Africa, Tervuren, Belgium. Nos. 50879 ( 9 holotype: Text-fig. 2A, C-F;

3A, C-G), 50880 ( 6 allotype: Text-fig. 2B; 2B, D, H).

As for the genus.

Kiss (1961) described a small protuberance on the outside of each valve; this is facing the internal

fulcral point (Plate 10, 142, 2, Plate 10, 144, 3-4). As the only valves of Kiss’ material available for

examination (holotype 50879) are embedded in balsam in a glass slide it is impossible to determine

whether the protuberances are definitely present externally. We can establish that they relate to the

fulcral points as seen in our specimens but which are smooth externally. We feel confident that our

specimens belong to T. matthesi and that the absence of external protuberances results from the

extent of the calcification of the valves. No specimens with protuberances were found in our

collections.

Diagnosis:

Remarks:

Explanation of Plate 10, 144

Fig. 1.9LV, ext. lat. (OC1101, 1.54mm long); fig. 2,d'RV, muscle sc. (OCllOO, 1.44mm long); fig. 3,9RV, muscle sc. (OC1102,

1.52 mm long).

Scale A (400 /urn; x 45), fig. 1; scale B (100 pm-, x 220), figs. 2, 3.

■n

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Stereo-Atlas of Ostracod Shells 10, 145

Tanganyikacypris matthesi (7 of 10)

Distribution: Although Kiss considered the species as a very rare one, we found a great number of empty valves

and carapaces from a number of sites at Lake Tanganyika (Text-fig. 1). The species occurs in rather

coarse shallow sediments or beach sands. It is possible that T. matthesi lives interstitially in coarse

sediments in a high energy environment - the thickened valves would therefore be advantageous;

this is further substantiated by the absence of natatory setae on the antenna and the strong claws and

some setae on the antenna, thoracopoda I and furca.

Explanation of Plate 10, 146

Fig. l,9car., dors. (OC 1103, 1.49 mm long); fig. 2,d'car., dors. (OC 1104, 1.54 mm long); fig. 3,o*car., vent. (OC 1105, 1.59mm long).

Scale A (500 gm; x 40), figs. 1-3.

1.45 mm long). C: Lake Tanganyika, distribution of

Text-fig. 1, A : 9 LV, int. (OC1106, 1.51mm long). B:9RV, int. (OC1107,

T. matthesi.

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Stereo- Atlas of Ostracod Shells 10, 144

Tanganyikacypris matthesi (6 of 10)

i i

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Stereo-Atlas of Ostracod Shells 10, 146

Tanganyikacypris matthesi (8 of 10)

i i

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Stereo- Atlas of Ostracod Shells 10, 147

Tanganyikacypris matthesi (9 of 10)

Text-fig. 2, 9(holotype, 50879), A: antenna; C: maxillular processes, palp and branchial plate; D: antennula; E: maxilla; F: rake-like

organs. (/(allotype, 50880), B: distal portion of antenna.

Scale 1: 100 yum for F; 2: 250 yum for A-E.

t-rt--

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Stereo-Atlas of Ostracod Shells 10, 148

Tanganyikacypris matthesi (10 of 10)

Text-fig. 3,9 (holotype, 50879), A: thoracopoda I; C: mandible; E: thoracopoda II; F: furca (distal portion of claws extrapolated from

Kiss’ publication); G: furcal attachment, (/(allotype, 50880), B: hemipenis; D: maxillar palp; H: posterior end of body with seta.

Scale: 250 yum.

t-r

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Stereo-Atlas of Ostracod SheU 10 (25) 149-150 (1983)

Index, Volume 10, 1983 (1 of 2)

General Index

anisomorphica, Thaerocythere; 107-110

Athersuch, J. & Home, D. J., On Nannocythere pavo (Malcomson); 29-38

Baffinicythere howei Hazel; 53-62

Bollia delgadoi Vannier sp. nov.; 95-98

Bromidella sarvi Schallreuter; 25-28

buendensis, Schizocy there ; 83-90

choane, Polycope', 67-70

Colin, J. P., On Sarlatina merlensis Babinot & Colin; 17-20

Compton, E. E. & Ikeya, N., On Trachyleberis scabrocuneata (Brady); 119-126

Cytheretta (Flexus) plicata (V. Munster); 75-82

De Deckker, P. & Wouters, K., On Tanganyikacypris matthesi Kiss; 139-148

delgadoi, Bollia', 95-98

dissita, Tallinnellina ; 1-4

fecunda, Vittella; 13-16

Femerensia gealbertii Schallreuter gen. et sp. nov.; 91-94

foraminosa, Polycope ', 63-66

gealbertii, Femerensia ', 91-94

Harperopsis scripta (Harper); 5-12

Hasan, M., On Polycope choane Hasan sp. nov.; 67-70

Hasan, M., On Polycope foraminosa Hasan sp. nov.; 63-66

Hasan, M., On Polycope regina Hasan sp. nov.; 71-74

Hastatellina normandiensis Pribyl; 99-102

Horne, D. J., On Robertsonites tuberculatus (Sars); 39-52

Home, D. J. & Whittaker, J. E., On Baffinicythere howei Hazel; 53-62

Horne, D. J. & Athersuch, J., On Nannocythere pavo (Malcomson); 29-38

howei, Baffinicythere', 53-62

Ikeva, N. & Compton, E. E., On Trachyleberis scabrocuneata (Brady); 119-126

irregulare, Thaerocythere', 111-114

Jones, C. R. & Siveter, D. J., On Harperopsis scripta (Harper); 5-12

matthesi, Tanganyikacypris', 139-148

Maybury, C. & Whatley, R. C., On Thaerocythere anisomorphica Whatley & Maybury sp. nov.; 107-110

Maybury, C. & Whatley, R. C., On Thaerocythere irregulare Whatley & Maybury sp. nov.; 111-114

Mayburv, C. & Whatley, R. C., On Thaerocythere pieta Maybury & Whatley sp. nov.; 103-106

Maybury, C. & Whatley, R. C., On Thaerocythere regulare Maybury & Whatley sp. nov.; 115-118

merlensis, Sarlatina', 17-20

Nannocythere pavo (Malcomson); 29-38

normandiensis, Hastatellina ', 99-102

pavo, Nannocythere', 29-38

pieta, Thaerocythere', 103-106

plicata, Cytheretta (Flexus) ; 75-82

Polycope choane Hasan sp. nov.; 61 -IQ

Polycope foraminosa Hasan sp. nov.; 63-66

Polycope regina Hasan sp. nov.; 71-74

regina, Polycope; 71-74

reginae, Reginea; 21-24

Reginea reginae Schallreuter gen. et sp. nov.; 21-24

regulare, Thaerocythere; 115-118

Robertsonites tuberculatus (Sars); 39-52

Sarlatina merlensis Babinot & Colin; 17-20

sarvi, Bromidella ; 25-28

scabrocuneata, Trachyleberis; 119-126

Schallreuter, R. E. L., On Bromidella sarvi Schallreuter; 25-28

Schallreuter, R. E. L., On Femerensia gealbertii Schallreuter gen. et sp. nov.; 91-94

Schallreuter, R. E. L., On Reginea reginae Schallreuter gen. et sp. nov.; 21-24

Schallreuter, R. E. L. & Siveter, D. J., On Tallinellina dissita Schallreuter & Siveter sp. nov.; 1-4

Schizocythere buendensis Triebel; 83-90

scripta, Harperopsis; 5-12

Siveter, D. J., On Vittella fecunda Siveter sp. nov.; 13-16

Siveter, D. J. & Jones, C. R., On Harperopsis scripta (Harper); 5-12

Siveter, D. J. & Schallreuter, R. E. L., On Tallinellina dissita Schallreuter & Siveter sp. nov.; 1-4

spitzbergensis, Triadocypris; 127-138

Index, Volume 10, 1983 (2 of 2)

Stereo-Atlas of Ostracod Shells 10 (25) 150 (1983)

Tallinellina dissita Schallreuter & Siveter sp. nov.; 1-4

Tanganyikacypris matthesi Kiss; 139-148

Thaerocythere anisomorphica Whatley & Maybury sp. nov.; 107-110

Thaerocythere irregulare Whatley & Maybury sp. nov.; 111-114

Thaerocythere pieta Maybury & Whatley sp. nov.; 103-106

Thaerocythere regulare Maybury & Whatley sp. nov.; 115-118

Trachyleberis scabrocuneata (Brady); 119-126

Tradocypris spitzbergensis Weitschat; 127-138

tuberculatus , Robertsonites; 39-52

Vannier, J., On Bollia delgadoi Vannier sp. nov.; 95-98

Vannier, J., On Hastatellina normandiensis Pribyl; 99-102

Vittella fecunda Siveter sp. nov.; 13-16

Weiss, R. H., On Cytheretta (Flexus) plicata (V. Munster); 75-82

Weiss, R. H., On Schizocythere buendensis Triebel; 83-90

Weitschat, W., On Triadocypris spitzbergensis Weitschat; 127-138

Whatley, R. C. & Maybury, C., On Thaerocythere anisomorphica Whatley & Maybury sp. nov.; 107-110

Whatley, R. C. & Maybury, C., On Thaerocythere irregulare Whatley & Maybury sp. nov.; 111-114

Whatley, R. C. & Maybury, C., On Thaerocythere pieta Maybury & Whatley sp. nov.; 103-106

Whatley, R. C. & Maybury, C., On Thaerocythere regulare Maybury & Whatley sp. nov.; 115-118

Whittaker, J. E. & Horne, D. J., On Baffinicythere howei Hazel; 53-62

Wouters, K. & De Deckker, P., On Tanganyikacypris matthesi Kiss; 139-148

(113.312)

(113.313)

(116.11)

(116.331)

(118.15)

Index; Geological Horizon

See 1 (2) 5-22 (1973) for explanation of the Schedules in the Universal Decimal Classification

Middle Ordovician:

Bromidella sarvi; 25-28

Femerensia gealbertii ; 91-94

Harperopsis scripta; 5-12

Tallinellina dissita', 1-4

Vitella fecunda ', 13-16

Upper Ordovician:

Bollia delgadoi', 95-98

Reginea reginae; 21-24

Hastatellina normandiensis', 99-102

Lower Triassic:

Triadocypris spitzbergensis', 127-138

Cenomanian:

Sarlatina merlensis; 17-20

Oligocene:

Cytheretta plicata', 75-82

Schizocythere buendensis', 83-90

(118.22) Pliocene:

Thaerocythere anisomorphica', 107-110

Thaerocythere irregulare', 111-114

Thaerocythere pieta ', 103-106

Thaerocythere regulare ; 115-118

(119.1) Pleistocene

Baffinicythere howei', 53-62

Robertsonites tuberculatus ; 39-52

(119.9) Recent:

Baffinicythere howei', 53-62

Nannocythere pavo; 29-38

Polycope choane ; 67-70

Polycope foraminosa ; 63-66

Polycope regina; 71-74

Robertsonites tuberculatus ; 39-52

Tanganikacypris matthesi-, 139-148

Trachyleberis scabrocuneata', 119-126

Index; Geographical Location

See 1 (2) 5—22 (1973) for explanation of the Schedules in the Universal Decimal Classification

(261.1)

(261.27)

(261.4)

(268)

(420)

(429)

(430.1)

(44)

North Atlantic Ocean:

Baffinicythere howei', 53-62

Irish Sea & W. waters Britain:

Nannocythere pavo; 29-38

North-West Atlantic:

Robertsonites tuberculatus ; 39-52

Arctic Ocean:

Baffinicythere howei', 53-62

Robertsonites tuberculatus', 39-52

England:

Baffinicythere howei', 53-62

Harperopsis scripta ; 5-12

Wales:

Tallinnellina dissita', 1-4

Vittella fecunda', 13-16

German Federal Republic:

Cytheretta plicata; 75-82

Femerensia gealbertii', 91-94

Reginea reginae; 21-24

Schizocythere buendensis; 83-90

France:

Bollia delgadoi ; 95-98

Hastatellina normandiensis; 99-102

Thaerocythere anisomorphica; 107-110

Thaerocythere irregulare; 111-114

Thaerocythere pieta ; 103-106

Thaerocythere regulare; 115-118

(469)

(481)

(484.81)

(489)

(520)

(595)

(678)

(798)

Portugal:

Bollia delgadoi; 95-98

Hastatellina normandiensis; 99-102

Sarlatina merlensis ; 17-20

Norway:

Robertsonites tuberculatus; 39-52

Spitsbergen Is.:

Triadocypris spitzbergensis; 127-138

Denmark:

Bromidella sarvi; 25-28

Japan:

Trachyleberis scabrocuneata ; 119-126

Malaysia:

Polycope choane; 61 -IQ

Polycope foraminosa ; 63-66

Polycope regina; 71-74

Tanzania:

Tanganyikacypris matthesi; 139-148

Alaska:

Robertsonites tuberculatus ; 39-52

Stereo- Atlas of Ostracod Shells: Vol. 10, Part 2

CONTENTS

On Cytheretta (Flexus) plicata (V. Munster); by R. H. Weiss

On Schizocythere buendensis Triebel; by R. H. Weiss

On Femerensia gealbertii Schallreuter gen. et sp. nov.; by R. E. L. Schallreuter

On Bollia delgadoi Vannier sp. nov.; by J. Vannier

On Hastatellina normandiensis Pribyl; by J. Vannier

On Thaerocythere pieta Maybury & Whatley sp. nov. ; by C. Maybury & R. C. Whatley

On Thaerocythere anisomorphica Whatley & Maybury sp. nov.; by R. C. Whatley &

C. Maybury

On Thaerocythere irregulare Whatley & Maybury sp. nov.; by R. C. Whatley & C. Maybury

On Thaerocythere regulare Maybury & Whatley sp. nov. ; by C. Maybury & R. C. Whatley

On Trachyleberis scabrocuneata (Brady); by N. Ikeya & E. E. Compton

On Triadocypris spitzbergensis Weitschat; by W. Weitschat

On Tanganyikacypris matthesi Kiss; by P. De Deckker & K. Wouters

Index for Volume 10, 1983

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