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A Stereo-Atlas of Ostracod Shells
edited by R. H. Bate, J. W. Neale, David J. Siveter and
R C Sylvester -Bradley
Volume 4, Part i; 30th June 1977
Published by The British Micropalaeontological Society
in association with Robertson Research International Ltd.,' Llandudno, Wales
r- mnm mm
-
■
Editors
Dr. R.H. Bate, Department of Palaeontology, British Museum (Natural History), Cromwell Road,
London SW7 5BD.
Dr. J.W. Neale, Department of Geology, The University, Hull HU6 7RH.
Dr. David J. Siveter, Department of Geology, The University, Leicester LEI 7RH.
Professor P.C. Sylvester-Bradley, Department of Geology, The University, Leicester LEI 7RH.
Editorial Board
Dr. Richard H. Benson, Smithsonian Institution, Washington, D.C., 20560. U.S.A.
Dr. Alwine Bertels, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires,
Argentina.
Dr. K. Ishizaki, Institute of Geology and Paleontology, Tohoku University, Sendai, Japan.
Dr. C.W. Haskins, Robertson Research International Limited, ‘Ty’n-y-Coed’, Llanrhos, Llandudno,
N. Wales, LL30 ISA.
Dr. P.J. Jones, Bureau of Mineral Resources, P.O. Box 378, Canberra City, A.C.T 2601 , Australia.
Prof. Dr. E. Kempf, Geologisches Institut der Universitat Koln, Zulpicher Strasse 49, D-5 Koln 1,
German Federal Republic.
Dr. H.J. Oertli, S.N.P.A., Centre de Recherches, 64001 Pau, France.
Prof. G. Ruggieri, Instituto e Museo di Geologia dell'Universita di Palermo, Corso Tukdry, 131,
90134 Palermo, Italy.
Mr. P.F. Sherrington, Petro-Canada, P.O. Box 2844, Calgary, Alberta T2P 2M7, Canada.
Instructions to Authors
Contributions illustrated by scanning electron micrographs of Ostracoda in stereo-pairs are invited.
Full instructions may be obtained on request from any one of the Editors or Editorial Board. 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 the Editors.
Acknowledgments
This Volume of the Stereo-Atlas has been aided by generous financial support from Robertson
Research International Limited.
Stereo -viewing for users of the Atlas
In order to obtain maximum information and benefit from the use of the Stereo-Atlas it is essential
that the user view the micrographs stereoscopically . Small pocket-sized stereo-viewers are most
suitable for this purpose. Two suppliers are:
C.F. Casella & Co. Ltd., Regent House, Britannia Walk, London N1 7ND, and
Air Photo Supply Corpn., 1 58 South Station, Yonkers, New York 1 0705 . U.S.A.
Plates printed by The Broadwater Press Ltd., Welwyn Garden City, Herts., England.
Stereo-Atlas of Ostracod Shells 4 (1 ) 1 - 8 (1977)
595.336. 22 (1 13.313) (486:161.018.57): 551.35 + 552.55
Cryptophyllus gutta (1 of 8)
ON CRYPTOPHYLLUS GUTTA SCHALLREUTER
by Roger E.L. Schallreuter
(University of Hamburg, German Federal Republic)
Cryptophyllus gutta Schallreuter, 1968
1968 Cryptophyllus gutta sp. n. R.E.L. Schallreuter, Palaont. Z. 42, 1/2, 1 10, pi. 13, figs. 4 - 7.
Holotype: Department of Geological Sciences, University of Greifswald, Pomerania, German Democratic Republic, no.
40/4; an adult RV (without nauplioconch and second larva).
Type locality: Norderstrand Visby, Isle of Gotland (Baltic Sea); lat. 57° 40'N long. 18° 18.5'E. Ojlemyrflint erratic
boulder (no. G2), Upper Ordovician.
Diagnosis: Adult valve length = 0.79mm. Umbo strong, outline therefore drop-like (= name). Maximum of 9 lamellae.
Nauplioconch with a short spine. Inner surface with a very broad duplicature (only in adults) and an
internal ridge (sulcament), corresponding external sulcus; sulcament consists dorsally of a sharp ridge
which has a spine-like ventral termination and ventrally, at about valve centre, of a similar spine-like process
or a less developed node-like thickening.
Explanation of Plate 4, 2
Fig. 1 , RV, without nauplioconch, ext. lat. (SGPIH 1907, 735 pm long); figs. 2, 3, RV (SGPIH 1906, 660 pm long): fig. 2, int.
lat.; fig. 3, ext. dors.
Scale A (250 pm; x 92), figs. 1,3; scale B (250 pm; x 89), fig. 2.
-4 — ! — i —
— ! — ! — i —
Stereo- Atlas of Ostracod Shells 4, 3
Cryptophyllus gutta (3 of 8)
Figured specimens: Geologisch - Palaontologisches Institut, University of Hamburg, nos. 1906 (complete RV: PI. 4, 2, figs. 2, 3;
PI. 4, 6, fig. 1), 1907 (RV without nauplioconch: PI. 4, 2, fig. 1), 1908 (LV with 6 lamellae only. PI. 4, 6,
figs. 2, 3), 1909 (juv. - 3 LV without nauplioconch and second larva: PI. 4, 4, fig. 2), 1910 (complete juv.
- 3 LV: PI. 4, 4, fig. 3), 1911 (RV with 3 lamellae only: PI. 4,4, fig. 1), 1912 (juv. - 1 RV without nauplio-
conch: PI. 4, 8, fig. 3), 1913 (fragmentary RV without nauplioconch: PI. 4, 8, fig. 1), 1914 (fragmentary
juv. - 1 RV without nauplioconch: PI. 4, 8, fig. 2).
From the Isle of Gotland (Baltic Sea), Ojlemyrflint erratic boulders, no. G4 (1906, 1907; Licker-
shamn: lat. 57° 49.5'N, long. 18° 30.5'E) and G9 (1908 - 1914; Gnisvards: lat. 57° 30'N, long. 18° 7'E),
Upper Ordovician; coll, by Horst Kaufmann, 1974 - 75.
Remarks: Some of the features cited in the diagnosis are probably not only characteristic for the species but also for
the genus as a whole. The discrimination of many Cryptophyllus species on the basis of published
information is rather difficult. Even the affiliation of the Eridostraca (to which Cryptophyllus belongs) to
the Ostracoda has been questioned by some authors (Schmidt, A bh. senckenb. naturforsch. Ges. 454, 18,
1941; Hartmann, Z. Zool. Syst. Evolut. - forsch. 1, 5, 146, 1963; Gorak, The Fauna of the lowest part of
the Toumaisian (zone Ct ’'a/ in the Donetz Basin , 106, Kiev, 1966; Jones, Bull. Bur. Miner. Resour. Geol.
Geophys. Aust. 99, 1, 64, 65, 1968; Jordan, Freiberger ForschHft., ser. C, 265, 28, 1970; hanger , Palaeon-
tographica , Abt. A, 144, 38, 1973).
Explanation of Plate 4, 4
Fig. 1, RV, 3 lamellae only, ext. lat. (SGPIH 1911, 621 pm long); fig. 2, juv. - 3 LV, without nauplioconch and second larva,
ext. lat. (SGPIH 1909, 455 pm long); fig. 3, complete juv. - 3 LV, ext. lat. (SGPIH 1910, 455 pm long).
Scale A (250 pm; x 98), fig. 1 ; scale B (100 pm; x 143), fig. 2; scale C (100 ^m; x 152), fig. 3.
Stereo-Atlas of Ostracod Shells 4, 4
Cryptophyllus gutta (4 of 8)
Stereo-Atlas of Ostracod Shells 4, 2
Cryptophyllus gutta (2 of 8)
Stereo-Atlas of Ostracod Shells 4, 5
Cryptophyllus gutta (5 of 8)
Remarks: The mechanism of growth in Cryptophyllus is shown in PI. 4, 2, fig. 2 and PI. 4, 6, figs. 1,3. The new valve
(contd.J develops a complete new hinge, rendering obsolete the previous hinge which migrates away from the
contact plane. The lamellae of the younger instars do not therefore extend to the contact plane as in the
forms of Eridostraca illustrated by Adamczak ( Acta palaeont. pol. 6, figs. 1, 9A - E, 17, 20, 23, 1961), and
there is no “innige Verzahnung der einzelnen Lamellen” (Langer, op. cit., 36). The complete separation of
the two valves of the carapace at the dorsal margin is, according to Hartmann (op. cit., 8), a special feature
of the Ostracoda.
Cryptophyllus gutta also has another structure typical of ostracods; a broad duplicature very
similar to the inner lamella of Oejlemyra Schallreuter, 1968 (Mss. Z. Univ. Greifswald, 17, fig. 26.3). This
feature provides strong additional evidence that the Eridostraca are true ostracods and, moreover, indicates
affinities with the Podocopida. There are also some similarities in this respect in the morphology of the
adductor muscle scar field (cf. Cryptophyllus platyogmus Jones, Bull. Bur. Miner. Resour. Geol. Geophys.
Aust. 62, 17, fig. 6f, 1962, and Steusloffina cuneata (Steusloff) in Hessland & Adamczak, Geosci. Man. 6,
60, pi. 3, figs, lb - 2c, 1974).
Septum-like sulcaments are also known to occur in other ostracods (e.g., see Adamczak, Stockh.
. Contr. Geol. 17, 76, pi. 30, figs. 2c - e, 3c - e, 1968; Bonnema, Mitt, miner. - geol. Inst. Reichsuniv.
Groningen 2, 1, 73, pi. 8, fig. 7, 1909; Blumenstengel, Freiberger ForschHft., ser. C, 182, 73, fig. 23,
1965).
Explanation of Plate 4, 6
Fig. 1 , RV, hinges and nauplioconch, ext. dors. (SGPIH 1906); figs. 2, 3, LV, 6 lamellae only (SGPIH 1908, 71 2 long): fig.
2, int. dors, obi.; fig. 3, int. lat.
Scale A ( 100 pm', x 220), fig. 1 ; scale B (250 /im;x 90), fig. 2; scale C (250 /im; x 79), fig. 3.
F
f— L4-.
i — i—i-
Stereo- Atlas of Ostracod Shells 4, 7
tn
Cryptophyllus gutta (7 of 8)
Remarks: Like most Recent ostracods, C. gutta has nine instars. Other Ctyptophyllus species (especially post-
(contd.) Ordovician) have more instars, the maximum recorded number being 15 (cf. Becker & Bless, Internat.
Symp. Belg. Micropaleont. Limits Namur , Publ. 1 , pi. 17, fig. 5, 1974). Evolution within the Eridostraca is
characterised by the prolongation of ontogeny (insertion or addition of stages of development). Although
some ostracods have a constant series of larval stages, a similar prolongation may still occur if earlier
ontogenetic stages are lost as later stages are added.
Distribution: Isle of Gotland (Baltic Sea); Ojlemyrflint erratic boulders, Upper Ordovician.
Explanation of Plate 4, 8
Fig. 1, fragmentary RV, without nauplioconch, ext. lat. (SGPIH 1913, 462 pm long); fig. 2, fragmentary juv. - 1 RV, without
nauplioconch, ext. anterovent. obi. (SGPIH 1914), fig. 3, juv. - 1 RV, without nauplioconch, int. lat. (SGPIH 1912, 606 pm
long).
Sc_ale_ A_(J 00 jr m2 x_l_5 9 L Jig^ _1 j_ sca_le_ B _0 0 0 jUrn J 6 5 L_fig. 2j_scale _C_ ( 2 5 0 jUjn ;_x _1 0J^
Stereo-Atlas of Ostracod Shells 4, 8
Cryptophyllus gutta (8 of 8)
Stereo- Atlas of Ostracod Shells 4, 6
j
Cryptophyllus gutta (6 of 8)
.
Stereo-Atlas of Ostracod Shells 4 (2) 9 - 16 (1977) Miehlkella cribroporata (1 of 8)
595.336.15. (1 13.312) (430.2:161.013.54): 551.35 + 552 + 54
ON MIEHLKELLA CRIBROPORATA SCHALLREUTER gen. et sp. nov.
by Roger E.L. Schallreuter
(University of Hamburg, German Federal Republic)
Genus MIEHLKELLA gen. nov.
Type-species: Miehlkella cribroporata sp. nov.
In honour of Dr. Otto Miehlke, Warnemunde, German Democratic Republic. Gender, feminine.
A median-sized (to large ?) genus of Aparchitidae (suborder Leiocopa; see Schallreuter, Geol. For. Stockh.
Forh. 95, 37 - 49, 1973), without adventral sculptures. Outline ± postplete. Right/left overlap; ventrally,
the right valve has a contact groove and a wide contact ridge which overlaps the left valve. Muscle spot
slightly anterior of centre. Surface with densely developed pores which on the inner side end as sieve-pores
of a special type.
Derivation of name:
Diagnosis:
Explanation of Plate 4, 10
Figs. 1, 2, RV (holotype, SGPIH 1915, 768 p m long): fig. 1, ext. lat . ; fig. 2, ext. vent, obi.; fig. 3, fragmentary LV, int. lat..
detail showing sieve-pores (SGPIH 1916).
Scale A (250 pm; x 82), fig. 1 ; scale B (250 pm; x 105), fig. 2; scale C (25 pm; x 550), fig. 3
< — 1-4-
h-
H+"
-L-L.
Stereo-Atlas of Ostracod Shells 4, 1 1
Miehlkella cribroporata (3 of 8)
Remarks: Miehlkella is characterised by a special type of sieve-pore, the first sieve-pores to be observed in any
Palaeozoic ostracod. It resembles Baltonotella Sarv, 1959 ( Eesti NSV Tead. Akad. Geol. Inst, uurimused
4, 161 - 3) in its main features (right/left overlap, short straight hinge-line, missing adventral sculpture),
but the type-species of that genus has an ± amplete outline, a more anterior muscle spot and puncta which
are relatively larger, less close together and more elongate than the pores of Miehlkella (op. cit., pi. 32,
figs. 17 - 20; Bonnema, MYr. miner, -geol. Inst. Reichsuniv. Groningen 2, pi. 3, figs. 1 -9, 1909).
Hyperchilarina Harris, 1957 (cf. Schallreuter, 1973) also resembles Miehlkella in some respects
(right/left overlap, short straight hinge-line, muscle spot near centre), but strongly differs by its ± amplete
outline and adventral sculpture.
Although similar, the genus Bullatella Swain & Cornell (in Swain et al., J. Paleont. 35,354, 1961; cf.
especially pi. 47, figs, la - c) possesses a “pronounced midventral swelling and a low narrow ridge or row
of spines adjacent to free margin of each valve.” The type species of Conchoides Hessland, 1949, C.
micropunctata Hessland, 1949 (Bull. geol. Instn. Univ. Upsala 33, 149), is much larger, ± amplete, and
exhibits an indistinct and short step-like marking in the dorsal half of the anterior margin, a groove in the
dorsal part of the posterior margin, a very shallow dorsoventral depression (S2), and a minutely punctate
surface with scattered, larger puncta.
.j.
T
r
Explanation of Plate 4, 1 2
Fig. 1, LV, ext. lat. (SGPIH 1917, 863 pm long); figs. 2, 3, RV (SGPIH 1918, 1000 pm long): fig. 2, int. obi.; fig. 3, int. obi.,
detail showing sieve-pores.
Scale A (250 pm; x 81), fig. 1 ; scale B (250 pm; x 72), fig. 2; scale C (50 ^m; x 370), fig. 3.
TT
Stereo- Atlas of Ostracod Shells 4,10
Miehlkella cribroporata (2 of 8)
.
'
Stereo- Atlas of Ostracod Shells 4,13
Miehlkella cribroporata (5 of 8)
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Miehlkella cribroporata sp. nov.
Geologisch - Palaontologisches Institute, University of Hamburg, no. 1915, RV.
Beach at Dornbusch, Isle of Hiddensee (Baltic Sea); lat. 54° 36'N, long. 13° 7'E. Backsteinkalk erratic
boulder (1B2 Type, no. 1B9), Middle Ordovician.
Latin cribrum, sieve, and porus, pore; alluding to the sieve-pores.
Geologisch Palaontologisches Institut, University of Hamburg, nos. 1915 (RV: PI. 4, 10, figs. 1, 2; PI. 4,
16, fig. 2), 1916 (fragmentary LV: PI. 4, 10, fig. 3; PI. 4, 16, fig. 3), 1917 (LV: PI. 4, 12, fig. 1 ; PL 4, 16,
fig. 1), 1918 (RV: PI. 4, 12, figs. 2, 3), 1919 (RV: PI. 4, 14, fig. 1), 1920 (LV: PI. 4, 14, figs. 2, 3). From
Backsteinkalk erratic boulders nos. 1B4 (1920), 28B1 (1919) and 1B9 (for further data see Schallreuter,
Palaeontographica, Abt. A, 144, 65, 1973).
Diagnosis: As for the genus.
Explanation of Plate 4.14
Fig. 1 , RV, ext. lat. (SGPIH 1919, 871 pm long); figs. 2, 3, LV (SGPIH 1920, 866 pm long): fig. 2, ext. dors, obi.; fig. 3, ext.
lat.
Scale A (250 pm\ x 74), fig. 1 ; scale B (250 pm) x 70), figs. 2, 3.
■t-+-
■J.4..
Stereo- Atlas of Ostracod Shells 4,15
Miehlkella cribroporata (7 of 8)
Remarks: M. cribroporata is the only known certain species of the genus. One or more additional species are possibly
concealed in material described by Hessland (op. cit.) and Sarv (op. cit.) under Conchoides and
Conchoprimitia respectively. The most likely congeneric candidate is Miehlkella ? meganotifera (Hessland)
(op. cit., pi. 2, figs, la - d) which, according to Sarv. (op. cit., 165), has Conchoides ventropunctata
Hessland, Conchoides dorsodepressula Hessland and Conchoides levis Hessland as probable synonyms.
Conchoprimitia distincta Sarv and Conchoprimitia luxuriosa Sarv also more probably belong to Miehlkella
than to Conchoprimitia. All these questionable Miehlkella species are larger than the type species and
occur in Lower Ordovician beds. Moreover, all of them apparently have a left/right overlap.
‘Bradoria sp.’ of Bolton & Copeland (/. Paleont., 37, 1070, 1963), from the Middle Cambrian of
western Canada, also resembles M. cribroporata (postplete outline, right/left overlap, no adventral
sculpture, porate surface) but is larger (3.2 mm long) and possesses a muscle spot distinctly anterior of
centre.
Distribution: Backsteinkalk erratic boulders of northern central Europe, Middle Ordovician (from the Upper Dalby and
Skagen Limestones of Sweden and the Idavere [C 3] /Johvi Stages [D , ] of Estonia).
Explanation of Plate 4,16
Fig. 1, LV, ext. vent. obi. (SGPIH 1917); fig. 2, RV, ext. dors. obi. (holotype, SGPIH 1915); fig. 3, fragmentary LV; int. lat.,
detail showing sieve-pores (SGPIH 1916).
Scale A (250 pm) x 81), fig. 1 , scale B (250 pm) x 93), fig. 2; scale C (10 pm) x 800), fig. 3.
r—r— i
"j~f *
Stereo-Atlas of Ostracod Shells 4, 14
Miehlkella cribroporata (6 of 8)
Stereo-Atlas of Ostracod Shells 4,16
Miehlkella cribroporata (8 of 8)
Stereo-Atlas of Ostracod Shells 4 (3) 17 -24 (1977)
595.336.13 (1 13.313) (486.161.018.57): 551.35 + 552.55
Distobolbina bispinata (1 of 8)
ON DISTOBOLBINA BISPINA TA SCHALLREUTER sp nov.
by Roger E.L. Schallreuter
(University of Hamburg, German Federal Republic)
Distobolbina bispinata sp. nov.
Holotype: Geologisch - Palaontologisches Institut, University of Hamburg, no. 1921, 9 LV.
Type locality: Beach at Lummelunds bruk, Isle of Gotland (Baltic Sea); lat. 57° 44. 5 'N, long. 18° 24.5 'E. Ojlemyrflint
erratic boulder (no. 791), Upper Ordovician.
Derivation of name: Latin spina, spine; alluding to the two larger spines in the posterior half of the valve.
Figured specimens: Geologisch - Palaontologisches Institut, University of Hamburg, nos. 1921 (9 LV: PI. 4, 18, fig. 2; PI. 4.
20, fig. 1; PI. 4, 22, fig. 3), 1922 (9 RV: PI. 4, 18, fig. 1 ; PI. 4, 20, figs. 2, 3), 1923 (6 LV: PL 4, 18, fig. 3;
PL 4, 24, figs. 2, 3), 1924 (<J RV: PL 4, 22, fig. 1 ; PL 4, 24, fig. 1), 1925 (juv. RV: PL 4, 22, fig. 2).
All from Ojlemyrflint erratic boulder no. 791 (for further data see type locality).
Diagnosis: Adult valves c. 0.60 - 0.65 mm long. Preadductorial node tiny but distinct. Posteroventral lobule and centro-
dorsal node extended into stout, posteriorly directed lobal spines.
Explanation of Plate 4,18
Fig. 1 , 9 RV, ext. lat. (SGPIH 1922, 634 p m long); fig. 2, 9 LV, ext. lat. (holotype, SGPIH 1921 , 642 pm long); fig. 3, <5 LV.
ext. lat. (SGPIH 1923, 601 pm long).
Scale A (250 pm\ x 98), figs. 1,2; scale B (250 pm\ x 108), fig. 3.
Stereo-Atlas of Ostracod Shells 4, 19
Distobolbina bispinata (3 of 8)
Diagnosis . Tecnomorphic velum ridge-like or flange-like in anterocentral to centro- or posteroventral region. Dolon
(contd.) strongly convex, forms two deep loculi, external surface striate.
Remarks: As the name implies, D. bispinata is characterised by two strongly developed lateral lobal spines. Of the
known congeneric taxa, Distobolbina nabalaensis Sarv, 1959 (Eesti NSV Tead. Akad. Geol. Inst,
uurimused 4, 150) and D. tuberculata (Henningsmoen, 1954) ( Norsk geol. Tidsskr. 33, 78) resemble the
new species in most respects, especially in the morphology of the antrum and the dolen, which in both
species houses two deep loculi and has a striate external surface. D. nabalaensis , the type species, can be
distinguished by its much larger size (0.94 mm); according to Sarv it also has a small preadductorial node
and a low node of uncertain form dorsal to S2. D. tuberculata , which can occur together with the new
species, is somewhat larger (-0.78 mm long) and is characterized mainly by a single, stouter spine in the
posterodorsal region and only a weak and indistinct preadductorial node. Furthermore, in D. tuberculata
the tecnomorphic velum does not normally extend to the anterocentral region.
Distobolbina pinna Schallreuter, 1964 ( Ber . geol. Ges. D.D.R. , Sonderh. 2, 90) is about the same
size as D. bispinata, but its central dorsal spine is not more strongly developed than its anterodorsal and
posterodorsal spines, and its dolon is non-loculate or only indistinctly loculate and therefore lacks a
furrow marking the ventral prolongation of S2 (Schallreuter , Palaeontographica, Abt. A, 149, pi. 30(9),
figs. 4 -6, 1975).
Distobolbina grekoffi Schallreuter ( Stereo-Atlas of Ostracod Shells 4, 25 - 28, 1977) is larger
(c. 0.91 mm long) and has a botulate (= non-loculate) antrum and only a faintly convex dolon. Further-
more, in the males of that species the velum is developed ventrally as a row of spines, not a flange.
Explanation of Plate 4, 20
Fig. 1, 9 LV, ext. vent. obi. (holotype, SGPIH 1921); figs. 2, 3, 9 RV (SGPIH 1922): fig. 2, ext. vent, obi.; fig. 3, ext. vent.
Scale A (250 pm \ x 109), figs. 1,2; scale B ( 100 pm\ x 169), fig. 3.
Distobolbina bispinata (4 of 8)
Stereo- Atlas of Ostracod Shells 4,18
Stereo-Atlas of Ostracod Shells 4, 20
Distobolbina bispinata (2 of 8)
Stereo- Atlas of Ostracod Shells 4,21
Distribution: Known only from the type locality.
Distobolbina bispinata (5 of 8)
"T
H-
Explanation of Plate 4, 22
Fig. 1 , 6 RV, ext. lat. (SGPIH 1924, 635 long); fig. 2, juv. RV, ext. lat. (SGPIH 1925, 355 /um long); fig. 3,9 LV, ext. ant
obi. (holotype, SGPIH 1921).
Scale A (250 pm\ x 110), fig. 1 ; scale B ( 100 pm\ x 186), fig. 2; scale C (250 pm\ x 103), fig. 3.
F
TT
I-
I-
■M 1-
Stereo-Atlas of Ostracod Shells 4, 23
Distobolbina bispinata (7 of 8)
Explanation of Plate 4, 24
Fig. 1, d RV, ext. vent. obi. (SGPIH 1924); figs. 2, 3,d LV (SGPIH 1923): fig. 2, ext. vent. obl.;fig. 3, ext. vent.
Scale A (250 pm\ x 126), fig. 1 ; scale B (250 gm; x 105), fig. 2; scale C (100 gm; x 163), fig. 3.
Stereo-Atlas of Ostracod Shells 4, 24
Distobolbina bispinata (8 of 8)
Stereo-Atlas of Ostracod Shells 4, 22
Distobolbina bispinata (6 of 8)
.
Stereo-Atlas of Ostracod Shells 4 (4) 25 - 28 (1977)
595.336.13 (1 13.313) (486.161. 018.57): 551.35 + 552.55
Distobolbina grekoffi (1 of 4)
ON DISTOBOLBINA GREKOFFI SCHALLREUTER sp nov.
by Roger E.L. Schallreuter
(University of Hamburg, German Federal Republic)
Distobolbina grekoffi sp. nov.
Holotype: Geologisch - Palaontologisches Institut, University of Hamburg, no. 1926, 9 LV.
Type locality: Beach at Gnisvards, Isle of Gotland (Baltic Sea); lat. 57° 30'N, long. 18° 7'E. Ojlemyrflint erratic boulder
(no. G8), Upper Ordovician.
Derivation of name: In honour of Prof. Dr. Nicolas Grekoff, Boulogne, France.
Figured specimens: Geologisch - Palaontologisches Institut, University of Hamburg, nos. 1926 (9 LV: PI. 4, 26, figs. 1 - 3),
1927 (juv. LV: PL 4, 28, fig. 1), 1928 (6 RV: PL 4, 28, figs. 2,3).
All from Ojlemyrflint erratic boulder no. G8 (for further data see type locality); coll, by Horst
Kaufmann, 1975.
Explanation of Plate 4, 26
Figs. 1-3,9 LV (holotype, SGPIH 1926, 0.91 mm long): fig. 1 , ext. lat.; fig. 2 ext. vent, obi.; fig. 3, ext. ant. obi.
Scale A (250 pm; x 80), fig. 1 ; scale B (250 pm; x 68), fig. 2; scale C (250 pm; x 87), fig. 3.
Stereo-Atlas of Ostracod Shells 4, 27
Distobolbina grekoffi (3 of 4)
Diagnosis: Adult 9 c. 0.91 mm in length. Preadductorial node weak, diminutive, mounted by a spine which is
approximately equal in size to the other spines of the lateral surface. Velum in males and larvae repre-
sented as a row of spines. Dolon faintly convex; antrum botulate (= non-loculate), extends posteriorly to
the region below the posterior margin of S2 and the anteroventral half of the posteroventral lobule.
Remarks: This species is distinguished from the other known species of the genus, D. tuberculata (Henningsmoen)
( Norsk geol. Tidsskr. 33, 78, 1954), D. nabalaensis Sarv (Eesti NSV Tead. Akad. Geol. Inst, uurimused 4,
150, 1959), D. pinna Schallreuter ( Palaeontographica , ser. A, 149, 182, 1975), and D. bispinata
Schallreuter ( Stereo-Atlas of Ostracod Shells 4, 17 - 24, 1977) by its botulate (= non-loculate) antrum
and/or its faintly convex dolon and its velar morphology, developed as a row of spines in the males.
D. grekoffi therefore represents a special branch of evolution within the genus and could possibly belong
to a distinct subgenus.
Distribution: Known only from the type locality.
Explanation of Plate 4, 28
Fig. 1, juv. LV, ext. lat. (SGPIH 1927, 0.58 mm long); figs. 2, 3, cJ RV (SGPIH 1928, 0.85 mm long): fig. 2, ext. lat.; fig. 3, ext.
vent, obi., spines on posteroventral lobule.
Scale A (250 pm; x 111), fig. 1 ; scale B (250 pm; x 86), fig. 2; scale C (10 pm; x 350), fig. 3.
Stereo- Atlas of Ostracod Shells 4, 26
Distobolbina grekoffi (2 of 4)
Stereo- Atlas of Ostracod Shells 4, 28
Distobolbina grekoffi (4 of 4)
Stereo-Atlas of Ostracod Shells 4 (5) 29 - 32 (1977) Antiaechmina pseudovelata (1 of 4)
595.336.12 (1 13.313) (486:161.018.57): 551.35 + 552.55
ON ANTIAECHMINA PSEUDOVELATA SCHALLREUTER sp. nov.
by Roger E.L. Schallreuter
(University of Hamburg, German Federal Republic)
Holotype:
Type locality:
Derivation of name:
Antiaechmina pseudovelata sp. nov.
Geologisch-Palaontologisches Institut, University of Hamburg, no. 1929, RV.
Beach at Haftings, Isle of Gotland (Baltic Sea); lat. 57° 53'N, long. 18° 37'E. Ojlemyrflint erratic boulder
(no. G13), Upper Ordovician.
Referring to the ‘pseudovelum’.
Figured specimens: Geologisch-Palaontologisches Institut, University of Hamburg, no. 1929 (RV: PI. 4, 30, figs. 1 - 3; PI. 4,
32, figs. 1, 2). From Ojlemyrflint erratic boulder no. G13 (for further data see type locality); coll, by
Horst Kaufmann, 1975.
J.J
Explanation of Plate 4, 30
Figs. 1 - 3, RV (holotype, SGPIH 1929, 0.75mm long): fig. 1 , ext. lat.; fig. 2, ext. anterodors. obi.; fig. 3, ext. vent.
Scale A(250jum;x 107), fig. 1 ; scale B(250jum;x98), fig. 2; scale C ( 100 p,m \ x 1 38), fig. 3.
-T-|t
— i~r-
+
Stereo- Atlas of Ostracod Shells 4,31
Antiaechmina pseudovelata (3 of 4)
Diagnosis: Valve length 0.75mm. Length: height ratio c. 1.61. Outline amplete. Cardinal corners distinct, cardinal
angles much > 90°. Anterodorsal spine occurs distinctly before mid-height and behind anterodorsal
corner; base bulbous, tapers to a long, posteriorly directed spine not protruding over hinge line in lateral
view. A shallow S2 skirts the postero ventral base of the spine. A ridge -like pseudovelum occurs parallel to
the free margin and is entire between cardinal corners. Both the dorsum and the marginal surface are
hypocline. Lateral surface reticulate. j j ;
i i <
Remarks: In contrast to most other species of the genus the new species possesses a prominent pseudovelum and a
reticulate lateral surface. Only Antiaechmina anterobulbosa (Blumenstengel) ( Freiberger ForschHft., ser. ; ; ;
C. 182, 65, 1965) and Antiaechmina ? taurea (Keenan) (/. Paleont. 25, 573, 1951) exhibit a similar weak
ridge parallel to the free margin. In the latter species, the systematic position of which is equivocal, the
ridge forms the base for a row of small spines. | ; ;
Differentiation at generic level within the Circulinidae and Aechminidae is still a little obscure. The j j j *
taxonomic importance of variation exhibited by the spine, pseudovelum and reticulation is difficult to
assess. Thus, some Kinnekullea species, for example, K. thorslundi Henningsmoen (Bull. geol. Inst. Univ. j ; !
Upsala 32, 414, 1948 ) and K. henningsmoeni Neckaja ( Trudy vses neft. nauchno-issed. geol. -razv. Inst. j j 1
251, 20, 1966), also resemble A. pseudovelata , but in these species the spine is confluent with
the pseudovelum.
Distribution: Known only from the type locality. ! j ! ^
Explanation of Plate 4,32
Figs. 1 , 2, RV (holotype, SGPIH 1929): fig. 1 , ext. vent, obi.; fig. 2, ext. dors. obi.
Scale A (250 pm\ x 96), fig. 1 ; scale B (250 pm\ x 128), fig. 2.
I
Stereo-Atlas of Ostracod Shells 4,32
Antiaechmina pseudovelata (4 of 4)
v.
Stereo-Atlas of Ostracod Shells 4 (6) 33 - 40 (1977) Glyptocy there penni (1 of 8)
595.337.14 (1 16.222) (425.72: 162.002.5 1 ):55 1 .35 1 + 552.52
ON GL YPTOCYTHERE PENNI BATE & MAYES sp. nov.
by R.H. Bate and Carol Mayes
( British Museum [Natural History] , London)
Glyptocythere penni sp. nov.
Brit. Mus. (Nat. Hist.) OS 7582, 9 RV. [Paratypes: Brit. Mus. (Nat. Hist.) OS 7583 - 7591] .
Middle Jurassic (Upper Bathonian, Fimbriata - Waltoni Clay: Oppelia aspidoides Zone of authors but
dated here as Clydoniceras discus Zone) from Old Cement Quarry, Kirtlington, Oxfordshire, England:
Grid Ref. SP 49451985.
After Dr. Ian E. Penn, Institute of Geological Sciences, London, for his work on British Bathonian strati-
graphy.
Species of Glyptocythere having coarsely rugose and reticulate ornamentation, two median swellings and
pinched-out ventrolateral border.
Holotype:
Type locality:
Derivation of name:
Diagnosis:
Explanation of Plate 4, 34
Fig. 1, $ LV, ext. lat. (OS 7583, 900 ^am long); fig. 2, 9 LV, ext. lat. (OS 7585, 930 pm long); fig. 3, 9 RV, ext. lat. (holotype,
OS 7582, 880 pm long).
Scale A (250 pm\ x 67), fig. 1 ; scale B (250 pm\ x 65), fig. 2; scale C (250 pm\ x 68), fig. 3.
1 — (-4-
t-
•t— I-
■++-1-
Stereo-Atlas of Ostracod Shells 4, 35
Glyptocythere penni (3 of 8)
Figured specimens: Brit. Mus. (Nat. Hist.) OS 7582 (9 RV: PI. 4, 34, fig. 3), OS 7583 (9 LV: PI. 4, 34, fig. 1), OS 7584 (d
car.: PI. 4, 36, fig. 1 ; PI. 4, 40, fig. 3), OS 7585 (9 LV: PI. 4, 34, fig. 2), OS 7586 (juv. - 1 LV: PI. 4, 38,
fig. 2), OS 7587 (d LV: PI. 4, 36, figs. 2, 3), OS 7588 (juv. - 1 car.: PI. 4, 38, fig. 3), OS 7589 (juv. - 1
car.: PI. 4, 40, fig. 1), OS 7590 (juv. - 1 RV: PI. 4, 38, fig. 1), OS 7591 (d car.: PI. 4, 40, fig. 2).
All specimens collected from the Fimbriata - Waltoni Clay at the base of the Forest Marble, Old
Cement Quarry, Kirtlington, Oxfordshire.
Remarks: The Middle Bathonian Glyptocythere oscillum (Jones & Sherborn, 1888), like Glyptocythere penni sp.
nov. possesses two median swellings and a pinched-out ventrolateral border. The two species are, however,
readily distinguishable by the coarse reticulation and rather rugose appearance of G. penni. Indeed, the
surface ornamentation of G. penni sets this species apart from all others so far described, although it
shares with them the entomodont hinge, muscle scar pattern (pi. 4, 36, fig. 3), sieve plate normal pores
and simple, straight marginal pore canals ( G . penni has 7 - 8 anterior canals and 2 -3 posterior canals; Text-
fig. 1) of the genus.
Explanation of Plate 4,36
Fig. 1 , d car., ext. rt. lat. (OS 7584, 1030 pm long); figs. 2,3 ,6 LV, int. lat. & int. muse. sc. (OS 7587, 900 pm long).
Scale A (250 pm \ x 58), fig. 1 ; scale B (250 ^m; x 67), fig. 2 ; scale C (25 /rm; x 450), fig. 3.
Stereo- Atlas of Ostracod Shells 4, 34
Glyptocythere penni (2 of 8)
Stereo-Atlas of Ostracod Shells 4,36
Glyptocythere penni (4 of 8)
..
'
-
Stereo- Atlas of Ostracod Shells 4,37
Glyptocy there penni (5 of 8)
Remarks:
(contd.)
Distribution:
The many short-ranging species of Glyptocythere present in the Bajocian and Bathonian of Britain and
Europe (see Brand & Malz, Senckenberg. leth. 47, 481 - 535, 1966, and Bate in: A Stratigraphical Index
of British Ostracoda [in press] , Seel House Press) make this a stratigraphically important genus. Glypto-
cythere penni , used by Bate (op. cit.) as the index ostracod for the uppermost Bathonian ostracod zone, is
restricted to beds of known Clydoniceras discus Zone age; it has not been found in sediments dated as
belonging to the Oppelia aspidoides Zone. Because of this the Fimbriata - Waltoni Clay of Kirtlington is
dated as being of C. discus Zone age with the beds between this and the White Limestone beneath having
been removed prior to the deposition of the Fimbriata - Waltoni Clay.
Explanation of Plate 4, 38
Fig. 1, juv. - 1, int. rt. lat. (OS 7590, 720 pm long); fig. 2, juv. - 1, int. It. lat. (OS 7586, 760 pm long); fig. 3, juv. - 1 car., vent.
(OS 7588, 760 pm long).
Scale A (250 pm; x 83), fig. 1 ; scale B (250 pm; x 80), figs. 2, 3.
Stereo-Atlas of Ostracod Shells 4, 39
Glyptocythere penni (7 of 8)
flange-
Explanation of Plate 4, 40
Fig. 1, juv. - 1 car., dors. (OS 7589, 770 pm long); fig. 2, d car., dors. (OS 7591, 940 pm long), fig. 3, d car., normal pore with
sieve plate (OS 7584).
Scale A (250 pm; x 78), fig. 1 ; scale B (250 pm; x 64), fig. 2; scale C (10 pm; x 2,400), fig. 3.
Stereo-Atlas of Ostracod Shells 4, 40
Glyptocythere penni (8 of 8)
Stereo-Atlas of Ostracod Shells 4, 38
Glyptocythere penni (6 of 8)
Stereo-Atlas of Ostracod Shells 4 (7) 41-44 (1977) Paracytheridea anapetes (1 of 4)
595.337.14 (118.143) (678.163 040.10): 551.351 + 552.52
ON PARACYTHERIDEA ANAPETES AHMAD sp. nov.
by Manzoor Ahmad
(University of Hull, England)
Paracytheridea anapetes sp. nov.
Brit. Mus. (Nat. Hist.) no. OS 7757, 9 car. [Paratypes: Brit. Mus. (Nat. Hist.) nos. OS 7758, OS 7760]
E Shore, Lindi Creek, Tanzania; from sample FCRM 2034 at lat. 10° 3.4'S, long. 39° 42.03'E. Upper
Eocene.
Greek anapetes , expanded. A reference to the posterodorsal swelling and ventral ala.
Brit. Mus. (Nat. Hist.) coll. nos. OS 7759 (d LV: PI. 4, 42, fig. 1), OS 7757 (9 car.: PI. 4, 42, figs. 2, 3; PI.
4, 44, fig. 1), OS 7758 (9 LV : PI. 4, 44, fig. 2). Specimens OS 7757, OS 7758 from type locality; OS 7759
(Sample FCRM 2033) from 10m N of type locality, Upper Eocene.
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Explanation of Plate 4, 42
Fig. 1 , 6 LV, ext. lat. (OS 7759, 625 pm long); figs. 2, 3, 9 car. (holotype, OS 7757, 580 pm long): fig. 2, ext. It. lat.; fig. 3, ext.
rt. lat.
Scale A (100 pm; x 101), fig. 1 ; scale B (100 pm; x 107), fig. 2; scale C (100 pm; x 193), fig. 3.
■I H-t-'
J-J-
+ •
Stereo- Atlas of Ostracod Shells 4, 43
Paracytheridea anapetes (3 of 4)
Diagtrosis: A species with distinct sexual dimorphism; the presumed females are shorter compared with the presumed
males and have a bulbous posterodorsal swelling which is much reduced in the males. Besides the usual
hinge elements of the genus, the right valve has 14-15 small denticles in front of the anterior cusped
dental area. The left valve has corresponding sockets.
Remarks: Paracytheridea longicaudata chilensis Hartmann, 1962 (Mitt. zool. Mus. Hamb. 60, 21 1 , 212), a Recent
form from northern Chile, resembles the new species in general shape and the coarser ornamentation but
the Tanzanian species can easily be distinguished by its thin ribs criss-crossing the thicker ribs and the
slightly different hinge outlined above. No other similarities have so far been found between E African
and Chilean post-Mesozoic ostracods.
Distribution:
So far only known from Tanzania, mostly from Auversian - Bartonian, Eocene beds, but recorded also
from Lattorfian - Rupelian, Oligocene.
Explanation of Plate 4, 44
Fig. 1 , 9 car., dors, (holotype, OS 7757, 580 long); fig. 2, 9 LV, int. lat. (OS 7758, 574 pm long).
Scale A (100 pm ; x 160), fig. 1 ; scale B (100 pm; x 171), fig. 2.
■A —
Stereo-Atlas of Ostracod Shells 4, 42 Paracytheridea anapetes (2 of 4)
Stereo-Atlas of Ostracod Shells 4 (8) 45 - 48 (1977)
595.337.14 (1 18.21 1) (678:163.040.10): 551.351 + 552.52
Cladarocythere pterota (1 of 4)
ON CLADAROCYTHERE PTEROTA AHMAD gen. et. sp. nov.
by Manzoor Ahmad
(University of Hull, England)
Genus CLADAROCYTHERE gen. nov .
Type-species: Cladarocythere pterota sp. nov.
Derivation of name: From the Greek kladaros , fragile, and the generic name Cy there', with reference to the fragility of the
shell. Gender, feminine.
Diagnosis: Small to medium sized, very fragile. Lateral surface almost smooth except for a prominent adventral frill,
which is divided into 1 1 compartments by thickened normal pore canals. Muscle scar pattern consists of
four small adductor scars arranged in a vertical row with three larger frontal scars placed dorsally, the
ventral one of which is ‘V-shaped’. Eye spot absent.
Remarks: The new genus is closely related to Pseudocytherura Dubowsky, 1939 (= Paracytheropteron Ruggieri,
1952) and Paracytheridea Muller, 1894, but can be distinguished by the absence of lateral ornamentation
and eye tubercle, less calcification and the different development of the frill, which gives Cladarocythere a
very different shape in dorsal view. The frill on Manawa Hornibrook, 1949 and Cladarocythere is very
similar, but in all other respects the two genera are different.
Explanation of Plate 4, 46
Fig. 1 , LV, ext. lat. (OS 7774, 492 long); fig. 2, RV, ext. lat. (holotype, OS 7772, 496 pm long).
Scale A(100/im;x 182), fig. 1 ; scale B ( 1 00 pm ; x 171), fig. 2.
-H — L4--
Stereo-Atlas of Ostracod Shells 4, 47
Cladarocythere pterota (3 of 4)
Remarks:
(contd.)
Holotype:
Type locality:
Derivation of name:
Figured specimens:
Diagnosis:
Remarks:
Fig. 1 , RV, ext. dors.
Scale A ( 1 00 pm ; x 1
‘Genus Uncertain, species RC’ of Maddocks 1966 ( Univ . Kans. Paleont. Contr. 12) belongs in
Cladarocythere.
Maddocks (1966, p. 67) reported subfossil specimens from carbonate and quartz carbonate sands,
muddy sands and clays in depths of 2 - 24m from the Nosy Be' area of N Madagascar. The Tanzanian
specimens occur in shallow water, carbonate muddy sands.
Cladarocythere pterota sp. nov.
Brit. Mus. (Nat. Hist.) coll. no. OS 7772, RV. [Paratypes: Ten single valves, Brit. Mus. (Nat. Hist.) coll,
nos. OS 7773 - OS 7782] .
Stream SW of Mtwero, Lindi, Tanzania; from sample no. FCRM 2010, approx, lat. 9° 56‘S, long.
39° 43'E. Lower Miocene.
From the Greek pterotos, winged; with reference to the wing-like frill.
Brit. Mus. (Nat. Hist.) coll. nos. OS 7774 (LV: PI. 4, 46, fig. 1), OS 7772 (RV: PI. 4, 46, fig. 2; PI. 4, 48,
fig. 2), OS 7773 (RV: PI. 4, 48, fig. 1). All specimens are from the type locality and horizon.
As for the genus. Frill with about 1 1 compartments and ventral to the frill in the posterior half are two
very fine ribs which run parallel to the ventral margin.
‘Genus Uncertain, species RC’ of Maddocks (1966, figs. 55.1, 55.2) is a very closely related form and may
even be conspecific with C. pterota.
Explanation of Plate 4, 48
(OS 7773, 472 pm long); fig. 2, RV, int. vent. obi. (holotype, OS 7772, 496 pm long).
99), fig. 1 ; scale B (100 pm\ x 171), fig. 2.
Stereo-Atlas of Ostracod Shells 4,48
Stereo- Atlas of Ostracod Shells 4, 46
Cladarocythere pterota (2 of 4)
Cladarocy there pterota (4 of 4)
Stereo-Atlas of Ostracod Shells 4 (9) 49 - 52 (1977) Gammacythere ubiquita (1 of 4)
595.337.14 (1 16.212) (430.1 : 1 6 1 .009. 52 + 430.2: 161.011.53 + 420:162.002.51): 551.351 + 552.52
ON GAMMACYTHERE UBIQUITA MALZ & LORD
by Alan Lord and Heinz Malz
(University College London & Forschungsinstitut Senckenberg, Frankfurt am Main)
Genus GAMMACYTHERE Malz & Lord, 1976
Type-species (by original designation): Gammacythere ubiquita Malz & Lord, 1976
Diagnosis: Elliptical in lateral view with valves ventrally inflated. Smooth, flat, and protruding marginal rims are
present anteriorly and posteriorly. Dorsal valve edges straight or very slightly curved and close together
throughout the length of the dorsal margin. Anterior marginal pore canals widely and evenly spaced; eight
canals anteriorly, four posteriorly. Hinge tripartite; terminal loculate grooves with a smooth connecting
bar in the left valve. Strongly dimorphic.
Gammacythere ubiquita Malz & Lord, 1976
1938 Ostracode (5 13); C.A. Wicher, Abh. preuss. geol. Landesanst. 193, 1 5, pi. 27, fig. 5.
1976 Gammacythere ubiquita sp. nov. H. Malz & A.R. Lord, Senckenberg leth. 57 (4/6), 252, pis. 1 , 2 (q.v. for full synonymy).
Holotype: Forschungsinstitut Senckenberg, Frankfurt, SMF Xe 10429, d LV.
Type locality : Borehole Hambiihren — WA 2, W Germany (MTB 3325, Winsen a.d. Aller), 630m below surface; Lower
Pliensbachian (Lias 3 ).
Explanation of Plate 4, 50
Fig. 1 , d LV, ext. It. lat. (holotype, Xe 10429, 910 pm long); fig. 2, d RV, ext. rt. lat. (Xe 10452, 770 pm long).
Scale A (200 pm; x 90), fig. 1 ; scale B (200 pm; x 110), fig. 2.
Stereo-Atlas of Ostracod Shells 4, 51 Gammacythere ubiquita (3 of 4)
Forschungsinstitut Senckenberg nos. Xe
10429 (holotype, d LV: PL 4, 50, fig. 1), Xe
10452 (d RV: PI. 4, 50, fig. 2), Xe 10431 (9
car.: PL 4, 52, fig. 1), Xe 10430 (9 car.: PL 4,
52, fig. 2), Xe 10449 (9 LV: PL 4, 52, fig. 3),
Xe 10432 (d car.: PI. 4, 52, fig. 4) and Xe
10431 (d car.: PL 4, 52, fig. 5). Specimens Xe
10429 - Xe 10432 from Hambiihren — WA 2,
W Germany (Lower Pliensbachian; type
locality and horizon); Xe 10449 from Bore-
hole Schlieven 4, W Mecklenburg, E Germany
(Lower Pliensbachian); Xe 10452 from
Stowell Park Borehole, Gloucestershire,
England (1090 - 1100 ft below surface,
Lower Pliensbachian), Grid ref. SP 084118.
As for the genus ( Gammacythere is at present
monospecific).
A distinctive and widespread early Pliens-
bachian species in NW Europe. Highly variable
Text - fig. 1 . Gammacythere ubiquita Malz & Lord (9); ibex . in size and ornament. Discussed in detail by
Zone, Lower Pliensbachian, Blockley Station Quarry, Gloucester- Malz & Lord (1976).
shire, England. Drawings by Dr. John C. Holden.
Explanation of Plate 4,52
Fig. 1, 9 car., ext. dors. (Xe 10431, 800 pm long); fig. 2, 9 car., ext. vent. (Xe 10430, 810 ,um long); fig. 3, 9 LV, ext. It. lat. (Xe
10449, 680 pm long); fig. 4, d car., ext. dors. (Xe 10432, 930 pm long); fig. 5, d car., ext. vent. (Xe 10431, 910 pm long).
Scale A (200 pm; x 50), figs. 1,2,4; scale B (200 urn; x 100), fig. 3 ; scale C (200 pm; x 60), fig. 5.
"j~j- -
Stereo-Atlas of Ostracod Shells 4, 50
Stereo-Atlas of Ostracod Shells 4,52
Gammacy there ubiquita (4 of 4)
Gammacythere ubiquita (2 of 4)
■
.
Stereo-Atlas of Ostracod Shells 4 (10) 53 - 58 (1977)
595.337.14 (1 19.9) (420 + 564.3): 551.351
Callistocythere badia (1 of 6)
ON CALLISTOCYTHERE BADIA (NORMAN)
by John Athersuch and John E. Whittaker
(University of Leicester and British Museum [Nat. Hist.], London)
Callistocythere badia (Norman, 1862)
1862 Cythere badia sp. nov. A.M. Norman, Ann. Mag. Nat. Hist. ser. 3, 9, 48, pi. 3, figs. 13-15.
Lectotype: (here designated) 9 carapace, housed with the Brady coll., Hancock Museum. Newcastle-upon-Tyne; no
catalogue no., but placed in a separate, labelled slide.
Type locality: Mount’s Bay, Penzance, Cornwall, SW England, approx, lat. 50° 04'N, long. 05° 30'W; Recent.
Diagnosis: Ornament very subdued for genus; pattern distinctive; fossae best developed at anterior and posterior
margins.
Figured specimens: Hancock Museum specimen: lectotype (9 car.: PI. 4, 54, fig. 1), collected alive by the Rev. A.M. Norman,
May, 1855, from marine algae in rock -pools.
Explanation of Plate 4, 54
Fig. 1 , 9 car., ext. It. lat. (lectotype, 520 pm long); fig. 2, 9 car., ext. It. lat. (1976.1304, 520 pm long); fig. 3., 9 car., ext. It. lat.
(1976.1305, 510 pm long); fig. 4, juv. - 1 car., ext. It. lat. (1976.1306, 450 pm long); fig. 5, 6 car., ext. It. lat. (1976.1307,
500 pm long); fig. 6, 6 car., ext. rt. lat. (1976.1308, 510/zm long); fig. 7, 9 LV, int. lat. (1976.1309, 500 pm long), fig. 8, 6 LV,
int. lat. showing soft parts (1976.1310, 505 pm long).
Scale A (125 pm\ x 95), figs. 1 - 8.
~r_ '
— i-
— i — i —
-t — ! — —
Stereo- Atlas of Ostracod Shells 4,55
Callistocythere badia (3 of 6)
Figured specimens:
(contd.)
Brit. Mus. (Nat. Hist.)nos. 1976.1304(9 car.: PI. 4, 54, fig. 2); 1976.1305 (9 car.: PL 4, 54, fig. 3);
1976.1306 (juv. - 1 car.: PI. 4, 54, fig. 4); 1976.1307 (d car.: PI. 4, 54, fig. 5); 1976.1308 (d car.: PI. 4, 54,
fig. 6; PI. 4, 56, fig. 1); 1976.1309 (9 LV: PI. 4, 54, fig. 7; PI. 4, 56, figs. 2, 3, 5,7); 1976.1310 (d LV: PI. 4,
54, fig. 8); 1976.131 1 (9 RV: PI. 4, 56, figs. 4, 6). Text-figs. 1 - 3 are based on 1976.1312.
1976.1304, 1306 were collected alive by J.E. Whittaker on 3rd. August, 1969 from the alga
Enteromorpha intestinalis in rock-pools at Osmington Mills, Weymouth Bay, S England, approx, lat.
50° 38'N, long. 02° 23'W; water temperature 19°C, salinity 34°/oo.
1976.1305, 1307 - 1312 were collected alive by J. Athersuch during autumn, 1973, from
filamentous algae at Dhekelia, Cyprus, approx, lat. 34° 58'N, long. 33° 46'E; water temperature 24°C,
depth 5 cm, salinity 39°/oo.
Remarks: Previous records of C. badia have been confined almost
exclusively to the shores of the British Isles. An exami-
nation of material in the Brit. Mus. (Nat. Hist.), Hancock
Museum and our own collections revealed only females
and confirmed the widespread, but infrequent, occur-
rence of this dimorph of the species in Britain. However,
one of us (J.A.) has found both dimorphs living in
Cyprus. We have not been able to confirm records from
other areas. This little known species may well have a
wider European distribution, but probably has not been
recognised due to the inadequacy of the original illustra-
tions and description.
Text-fig. 1 . 6 RV, internal, transmitted light.
Radial pore canals, (x 1 54; 1976.1312).
Explanation of Plate 4,56
Fig. 1, 6 car., pore and seta, anterodorsal area (1976.1308); figs. 2, 3, 5, 7, 9 LV, int. lat. (1976.1309): fig. 2, int. view of pore
showing sieve plate, post, area; fig. 3, muse, sc.; fig. 5, post, hinge; fig. 7, ant. hinge. Figs. 4, 6, 9 RV, int. lat. (1976.131 1): fig. 4,
ant. hinge; fig. 6, post, hinge.
Scale A (10 p m; x 1 500), fig. 1 ; scale B(5/im;x 3000), fig. 2; scale C (50 pm \ x 400), fig. 3 ; scale D (50 pm \ x 300), figs. 4-7.
Stereo-Atlas of Ostracod Shells 4, 54
Callistocy there badia (2 of 6)
Stereo-Atlas of Ostracod Shells 4, 56
Callistocy there badia (4 of 6)
Stereo-Atlas of Ostracod Shells 4,57
Callistocy there badia (5 of 6)
Text - fig. 2. <5 appendages a: 1st. It. antenna; b: 2nd. It. antenna; c: It. mandible; d: It. maxilla (x 210; 1976.1312).
-f—
f-+-
Stereo-Atlas of Ostracod Shells 4, 58
Callistocy there badia (6 of 6)
'
Stereo-Atlas of Ostracod Shells 4 ( 1 1 ) 59 - 68 (1977) Cytheretta judaea (1 of 10)
595.337.14 ( 1 1 9.9) (262): 551.351 + 552.51
ON CYTHERETTA JUDAEA (BRADY)
by John Athersuch
(University of Leicester, England)
Genus CYTHERETTA Muller, 1894
Type-species (by monotypy): Cytheretta rubra Muller, 1894; here considered
conspecific with Ilyobates (?) judaea Brady, 1868.
Diagnosis: Carapace elongate - ovate, shell thick. Marked asymmetry of valves; smooth or with ornament of longitu-
dinal ribs. Hinge strong, holamphidont, anterior tooth prominent. Fulcral point developed into a strong
pillar. Inner margin highly sinuous; numerous, unbranched radial pore canals anteriorly and posteriorly.
First, and, in some species, second legs of male asymmetric.
Explanation of Plate 4, 60
Fig. 1 , lectotype, 6 LV, ext. lat. (Hancock Museum specimen, 720 ^m long); fig. 2, lectotype, 6 RV, ext. lat. (Hancock Museum
specimen, 720 /jm long); fig, 3, 6 rt. car., ext. lat. (1976.1 103, 804 long).
Scale A(250,um;x83), figs. 1,2; scale B(250/im;x75), fig. 3.
i — t— t-
Stereo- Atlas of Ostracod Shells 4,61
tn
Cytheretta judaea (3 of 10)
Cytheretta judaea (Brady, 1868)
1868 Ilyobates (?) judaea sp. nov. G.S. Brady, La cote de Syrie; in : Les Fonds de la Mer, L. De Folin & L. Perier, Paris, pt. 1,
112, pi. 13, figs. 17, 18.
1 894 Cytheretta rubra sp. nov. G.W. Muller, Fauna Flora Golf. Neapel 21 , 382, pi. 8, figs. 9, 10, 1 6; pi. 39, figs. 8 - 22, 24; non
pi. 8, fig. 13.
1971 Cytheretta subradiosa (Roemer); P.J. Barbeito - Gonzalez, Mitt. hamb. zool. Mus. Inst. 67, 284, pi. 17, figs, la, 2a.
1972 Cytheretta judaea (Brady); M.C. Keen, Bull. Br. Mus. nat. Hist. (Geol.) 21 , (6), 283, pi. 1 , figs. 1 , 4 - 7, 9, text-fig. 8.
Lectotype: (here designated) 6 LV, housed with the Brady collection, Hancock Museum, Newcastle-upon-Tyne; no
catalogue number, but placed in a separate, labelled slide.
Type locality: Jaffa (Tel Aviv), coast of Israel, approx, lat. 32° 04‘N, long. 34° 45 'E; Recent.
Diagnosis: Surface unornamented but with irregular rows of small circular pores. Male copulatory appendages,
distribution of radial pore canals and opaque areas distinctive.
Explanation of Plate 4, 62
Fig. 1, 9 LV, ext. lat. (1976.1104, 756 pm long); fig. 2, 9 RV, ext. lat. (1976.1104); figs. 3, 4, 9 RV, details of ornament
(1976.1104).
Scale A(250lum;x83), figs. 1,2; scale B (25 pm\ x 800), fig. 3 ; scale C (10 pm \ x 1600), fig. 4.
Stereo-Atlas of Ostracod Shells 4, 62
Cytheretta judaea (4 of 10)
Stereo-Atlas of Ostracod Shells 4, 60
Cytheretta judaea (2 of 10)
'
Stereo-Atlas of Ostracod Shells 4, 63
Cy there tta judaea (5 of 10)
Figured specimens: Hancock Museum specimen (d LV: PI. 4, 60, fig. 1 ; RV: PI. 4, 60, fig. 2). Brit. Mus. (Nat. Hist.) 1976.1103
(d car.: PI. 4, 60, fig. 3); 1976.1104(9 LV: PI. 4, 62, fig. 1;RV: PI. 4, 62, figs. 2-4); 1976.1105(9 LV: PI.
4, 64, fig. 1; PI. 4, 66, figs. 3,5); 1976.1 106 (d LV & soft parts: PI. 4, 64, fig. 2); 1976.1 107 (d car.: PI. 4,
64, fig. 3); 1976.1108 (? 9 RV: PI. 4, 66, fig. 1); 1976.1 109(6 RV: PI. 4, 66, figs. 2,4).
Nos. 1976.1 103, 1109 from beach sand at Rimini, Italy, kindly given by Prof. Ruggieri. 1976.1 107,
? sub-Recent from the Bay of Naples, given by Dr. G. Bonaduce. 1976. 1104, 1106 collected by Squ. Ldr.
C.R. Chrisp in Cyprus, 1976.1104 from sand at 13m in Akrotiri Bay; 1976.1106 from sand at 40 m off
Klidhes Island. 1976.1 105 collected by the author during November, 1973, from near Cape Greco, Cyprus,
approx, lat. 34° 04'N, long. 35° 00'E, in sand, water temperature 25°C, depth 8m, 02 102%, salinity
39°/oo.
Remarks: Brady (op. cit.) first recorded Ilyobates (?) judaea from Latakie, Syria (p. 110) and Jaffa, Israel (p. 112)
but did not designate a type specimen. The specimens from Latakie are not in the Brady collection in the
Hancock Museum, and are therefore presumed lost. However, two specimens from Jaffa remain undamaged.
The lectotype has been selected from this material.
Muller (op. cit.) illustrated the carapace and soft parts of Cytheretta rubra sp. nov., here considered
conspecific with C. judaea. Drawings of soft parts (herein) are based on a specimen from Muller’s syntype
collection (ex - 9308), now on separate, labelled slides housed in the Zoological Museum, E Berlin.
Explanation of Plate 4, 64
Fig.l, 9 LV, int. lat. (1976.1105, 890 pm long); fig. 2, 6 LV & soft parts (1976.1106, 800 pm long); fig. 3, 6 car., vent.
(1976.1107, 730 pm long).
Scale A (250 ^m; x 73), fig. 1 ; scale B (250 pm\ x 78), fig. 2; scale C (250 pm\ x 82), fig. 3.
4-— U4-
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Stereo-Atlas of Ostracod Shells 4, 65
Cytheretta judaea (7 of 10)
Remarks: This species has been considered by some authors (e.g. Ruggieri 1950, G. Geol. ser. 2, 21; Hazel
(contd.) 1967, Prof. Pap. U.S. geol. Surv. no. 564) to be conspecific with Cytherina subradiosa Roemer, 1838 from
the Pliocene of Castellarquato, Italy. Roemer’s original material is lost (pers. comm. Prof. G. Ruggieri) and
his description and illustration inadequately define this species. Keen (op. cit.) considered the Pliocene
C. subradiosa (Roemer) to be distinct from the present species and with this I agree. For full details see
Keen, op. cit., p. 281 .
Distribution: Recent: coasts of Syria and Israel (Brady, op. cit.), the Aegean (Brady collection), the Adriatic (Ruggieri,
op. cit. and others), Naples (Muller, op. cit.), Monaco (Rome 1942, Monaco Inst. Oceanogr., Bull. 819),
and Cyprus (herein).
■rr
Explanation of Plate 4, 66
Fig. 1 , 9 RV, int. lat. muse. sc. (1976.1 108, 902 pm long); figs. 2, 4, 6 RV, terminal hinge elements (1976.1 109); figs. 3,5 9 LV,
terminal hinge elements (1976.1 105).
Scale A (25 pm\ x 290), fig. 1 ; scale B (25 pm\ x 262), figs. 2 - 5.
Text - fig. 1. 6 appendages (x 190). a: 1st. It. antenna; b: 2nd. rt. antenna; c: It. copulatory appendage; d: distal part of rt.
copulatory appendage; e: mandible.
U4--
T T
■ L -L
f
+-•
I H4-
44-+
Text - fig. 2. a - f. 6 appendages (x 190). a: 1st. It. leg; b: 1st. rt. leg; c: 2nd. It. leg; d: 3rd. It. leg; e: maxilla; f: brush shaped
organ. 2. g: Radial pore canals and opaque areas of a 6 RV from Cyprus (x 1 10).
j.
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Stereo-Atlas of Ostracod Shells 4 (12) 69 - 78 (1977) Cytheretta adriatica (1 of 10)
595.337.14 (1 19.3/1 19.9) (262.2 + 45): 551. 351 + 552.51
ON CYTHERETTA ADRIATICA RUGGIERI
by John Athersuch
(University of Leicester, England)
Cytheretta adriatica Ruggieri, 1952
1866 Cythere jurinei Munster; G.S. Brady, Trans, zool. Soc. Lond. 5, 372, pi. 59, figs, la - f ( non C. jurinei Munster, 1830).
1878 Cythere jurinei Munster; G.S. Brady, Trans, zool. Soc. Lond. 10, 305, pi. 65, fig. 2.
1950 Cytheretta jurinei (Munster); G. Ruggieri, G. Geol., ser. 2.21, 1 1 , pi. 1 , fig. 1 1 , text-fig. 3.
1952 Cytheretta adriatica sp. nov. G. Ruggieri, G. Geol., ser. 2, 22, 36.
1958 Cytheretta ruggierii sp. nov. H.S. Puri, Trans. Gulf Coast Assoc. Geol. Soc. 8, 186, pi. 2, figs. 1 - 5.
1971 Cytheretta adriatica Ruggieri; P.J. Barbeito-Gonzalez, Mitt, hamb. zool. Mus. Inst. 67, 285, pi. 17, figs, lb, 2b, 3b.
Holotype: (not figured herein) Deposited in the Ruggieri collection, Institute of Geology, University of Bologna, Italy;
no. 555.
Type locality : The bed of the Santerna River, S of Imola, N Italy, approx, lat. 44° 22'N, long. 11° 43‘E; Milazzian
(Quaternary), in a sub-littoral, grey sand.
Explanation of Plate 4, 70
Fig. 1 , 9 LV, ext. lat. (1976. 1110, 1220 pm long); fig. 2, d LV, ext. lat. (1976. 1111, 1340 pm long); fig. 3, juv. - 1 RV, ext. lat.
(1976.1112, 8 1 7 pm long).
Scale A (250 pm\ x 53), figs. 1,2; scale B (250 ^m; x 62), fig. 3.
U+
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Stereo-Atlas of Ostracod Shells 4, 71 Cytheretta adriatica (3 of 10)
Figured specimens: Brit. Mus. (Nat. Hist.) 1976. 1110(9 LV: PI. 4, 70, fig. 1 ; PI. 4, 74, fig. 1); 1976.1111 (d LV: PI. 4, 70, fig.
2; PI. 4, 74, figs. 5, 6); 1976.1112 (juv. - 1 : PL 4, 74, fig. 3); 1976.1113 (? d: PI. 4, 72, fig. 1 ; text-fig. l,a,
c); 1976.1114 (9 RV: PI. 4, 72, fig. 2; LV: PI. 4, 72, fig. 3); 1976.1 1 15 (d LV: PI. 4, 74, fig. 2); 1976.1116
(d RV & soft parts: PI. 4, 74, fig. 3); 1976.1 117 (d LV: PI. 4, 74, fig. 4); 1976.1 1 18 (d LV: PI. 4, 76, figs.
1,3, 5); 1976.1 1 19 (d RV: PI. 4, 76, figs. 2,4). Text figs. 2, 3 are based on 1976.1 1 10,1 1 1 1 .
1976.1112 - 1114, 1117 - 1119 collected in Italy by Prof. G. Ruggieri; 1976.1112, 1117 from
beach sand at Rimini; 1976.1 114, 1 118, 1119 from beach sand at Porto Corsini; 1976.11 13 from the type
locality. 1976.1115 from beach sand in Tunisia collected by Dr. G. Bonaduce. 1976.1110, 1111, 1116
collected alive in Cyprus by J. Athersuch; 1976.1110 from sand near Cape Greco, approx, lat. 34° 57‘N,
long. 34° 04'E, water depth 19m; 1976.1111 from sand near Cape Greco, approx, lat. 35° 00'N, long.
34° 04'E, water temperature 20.5°C, depth 12m, pH 8.2, 02 103%, salinity 39°/oo;1976.1116 from
sand outside Yialousa harbour, approx, lat. 35° 34'N, long. 34° 14‘E, water temperature 21°C, depth 1 lm,
pH 8.1 , salinity 39°/oo.
Diagnosis: Carapace surface bears ridges of variable strength which run parallel to the dorsal and ventral margins and
tend to coalesce posteriorly and sub -centrally. Soft parts distinctive.
Explanation of Plate 4, 72
Fig. 1, ? d RV, ext. lat. (1976.1113, 951 pm long); fig. 2, 9 RV, ext. lat. (1976.1114, 939 pm long); fig. 3, 9 LV, ext. lat.
(1976.1114).
Scale A (250 pm\ x 64), figs. 1 - 3.
Stereo-Atlas of Ostracod Shells 4, 70
Cytheretta adriatica (2 of 10)
• j
Stereo-Atlas of Ostracod Shells 4, 73 Cytheretta adriatica (5 of 10)
Remarks: In transmitted light, the distribution and number of radial pore canals appears to differ between the Recent
and the few Quaternary specimens examined. The former have a greater number posteriorly and fewer
anteriorly than the latter. These differences, however, are not considered sufficient to distinguish separate
species (see Text - fig. 1).
Recent species of Cytheretta are characterised by the asymmetry of the first pair of legs in the
male. In this species, there is extreme transformation, not only of the first, but also of the second male legs
(See Hazel, 1967, Prof. Pap. U.S. geol. Surv. no. 564, 40). Living specimens are usually associated with
shallow water sands.
Distribution: Recent: Rimini, Italy (Puri, op. cit .); Naxos, Greece (Barbeito-Gonzalez, op. cit .); Cyprus, Tunisia and
Porto Corsini, Italy (author’s collection); Levant (Brady 1866). Quaternary: N Italy (Ruggieri 1950,
op. cit.).
Explanation of Plate 4, 74
Fig. 1,9 RV, ext. lat. (1976. 1110, 1220 pm long); fig. 2, 9 LV & soft parts, int. lat. (1976.1 1 16, 1 1 22 pm long); fig. 3, 6 LV,
ext. lat. (1976.1 1 1 5, 1049 pm long); fig. 4,6 LV, int. lat. (1976.1 1 17, 1 024 pm long); figs. 5,6 , d LV, details of ornament and
setae (1976.1 111).
Scale A(250lum;x45), figs. 1 - 4 ; scale B(25,um;x473), fig. 5 ; scale C ( 1 0 /rm ; x 1455), fig. 6.
■ t— L4-
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--
Stereo- Atlas of Ostracod Shells 4,75
Cytheretta adriatica (7 of 10)
Text - fig. 1 . Radial pore canals, a, c: post. LV and ant. RV of Quaternary specimen from type locality (1976.1 1 1 3);
b: RV of Recent specimen from Rimini, Italy, (x 85).
Explanation of Plate 4, 76
Fig. 1 , 6 LV, int. muse. sc. (1976.1 1 18); figs. 2,4 6 RV, terminal hinge elements (1976.1 119); figs. 3,5 ,6 LV, terminal hinge
elements (1976.1118).
Scale A (25 pm\ x 290), fig. 1 ; scale B (25 pm\ x 230), figs. 3-5.
j.
”i-i" •
Stereo-Atlas of Ostracod Shells 4, 74
Stereo-Atlas of Ostracod Shells 4, 76
Cytheretta adriatica (6 of 10)
Cytheretta adriatica (8 of 10)
+•+— f
Stereo- Atlas of Ostracod Shells 4,77
Cytheretta adriatica (9 of 1 0)
Text-fig. 2, appendages, a: d lst.lt.
antenna; b: d It. copulatory appen-
dage; c: d maxilla; d: d 2nd. It.
antenna; e: $ antero-median seta of
3rd. podomere of 2nd. It.
antenna, (x 180;
1976.1111; e, 1976.1110)
Stereo-Atlas of Ostracod Shells 4, 78
Cytheretta adriatica (10 of 10)
Stereo -Atlas of Ostracod Shells: Vol.4,Part 1
CONTENTS
4 (1) 1-8 On Cryptophyllus gutta Schallreuter; by R.E.L. Schallreuter (£1.70)
4 (2) 9-16 On Miehlkella cribroporata Schallreuter gen. et sp. nov.; by R.E.L. Schallreuter (£1 .70)
4 (3) 17-24 On Distobolbina bispinata Schallreuter sp. nov.; by R.E.L. Schallreuter (£1 .70)
4 (4) 25-28 On Distobolbina grekoffi Schallreuter sp. nov.; by R.E.L. Schallreuter (£0.85)
4 (5) 29-32 On Antiaechmina pseudovelata Schallreuter sp. nov.; by R.E.L. Schallreuter (£0.85)
4 (6) 33-40 On Glyptocythere penni Bate & Mayes sp. nov.; by R.H. Bate & C. Mayes (£1 .70)
4 (7) 41-44 On Paracytheridea anapetes Ahmad sp. nov.; by M. Ahmad (£0.85)
4 (8) 45-48 On Cladarocy there pterota Ahmad gen. et sp. nov.; by M. Ahmad (£0.85)
4 (9) 49-52 On Gammacy there ubiquita Malz & Lord; by A. Lord & H. Malz (£0.85)
4 (10) 53-58 On Callistocy there badia (Norman); by J. Athersuch & J.E. Whittaker (£1 .00)
4(11) 59-68 On Cytheretta judaea (Brady); by J. Athersuch (£1 .85)
4(12) 69-78 On Cytheretta adriatica Ruggieri; by J. Athersuch (£1 .85)
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