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Stereo-Atlas of Ostracod Shells, 2:l:l-4 (1974) Bairdia hahni (1 of 4)

595.337.11 (116.212) (430.1:161.009.48): 551.351+552.523

ON BAIRDIA HAM I LORD AND M00RLEY sp. nov.

by Alan Lord and A. Moorley

(University College , London and Exploration Logging International , Windsor, England)

Bairdia hahni sp. nov.

Brit. Mus. (Nat. Hist.) 10 5994, LV.

Clay pit at Reutlingen, Baden-WUrttemberg , Germany; long. 9°10'E, lat.

48°30'N. Pliensbachian, P. spinatum Zone, (Lias delta 2).

In honour of Dr. Wolfgang Hahn (1936-1972) , Geologisches Landesamt

Baden-Wurttemberg .

Brit. Mus. (Nat. Hist.) 10 5994 (LV: Pi. 2:1:2, fig. 1; PI. 2:1:4, figs.

2, 3), IO 5995 (RV: PI. 2:1:2, fig. 2), 10 5996 (LV: PI. 2:1:4, fig. 1) ;

all from same sample as holotype, clay of P. spinatum Zone at Reutlingen

Elongate, coarsely reticulate species of Bairdia with short spines

along raised edges of anterior and posteroventral margins.

Explanation of Plate 2:1:2

Fig. 1, LV ext. lat. (10 5994, 680 ym long); fig. 2, RV ext. lat. (10 5995, 570 ym long).

Scale A (150 ym ; xi33) , fig. 1; scale B (200 ym ; ><155) , fig. 2.

Stereo-Atlas of Ostracod Shells, 2:1:3 Bairdia hahni (3 of 4)

Remarks: An unusual species amongst Liassic Bairdiidae in that it is ornamented

with a coarsely developed reticulation and possesses short bulky spines

along the anterior and posteroventral margins. The spinose margins are

themselves raised and are otherwise unornamented. Internal details

poorly known.

One other ornamented Bairdia species is known from the Lower Jurassic,

B. clio Bizon (Lower Pliensbachian of northern France; Revue Micro-

paleont., 2, 1960), which is less elongate than B. hahni, has a

different outline, in particular lacking a dorsally upturned posterior,

and is ornamented with discrete tubercles rather than being reticulate.

Bairdia hahni and B. clio are closely related, the former apparently

having been developed from the latter. Reticulate species have been

described from the Triassic (e.g. H. Bolz, Senckenberg. leth. , 52,

1971) as Triebelina, Ptychobairdia , etc., but at the moment it is

preferred to place the present species in Bairdia in view of continuing

work on the Triassic species.

Associated with B . hahni is a rich Upper Pliensbachian assemblage

containing Bairdia aselfingenensis sp. nov. (see Stereo-Atlas of

Ostracod Shells, vol. 2, pt. 1, pp. 5-8, 1974) and Ogmoconcha spp. but

with a noticeable absence of cytheracean species of the type assigned

in the past to Procytheridea.

Explanation of Plate 2:1:4

Fig. 1, LV int. lat. (IO 5996, 660 ym long); fig. 2, LV ext. ant. obi. detail (10 5994);

fig. 3, LV ext. ant. obi. (10 5994).

Scale A (200 ym ; xJ45) , fig. 1; scale B (65 ym ; x538) , fig. 2; scale C (200 ym ; xi50) ,

fig. 3.

Holotype :

Type locality:

Derivation of name:

Figured specimens:

Diagnosis :

Stereo-Atlas of Ostracod Shells, 2:2:5-8 (1974) Bairdia aself ingenensis (1 of 4)

595.337.11 (116.212) (430.1:161.008.47): 551.351 + 552.523

ON BAIRDIA ASELF ID GENED SIS LORD AND M00RLEY sp. nov.

by Alan Lord and A. Moorley

(University College 3 London ccnd Exploration Logging International 3 Windsor 3 England)

Bairdia as elf ingenensis sp. nov.

Brit. Mus. (Nat0 Hist.) 10 5997, carapace0

Aselfingen, Baden-Wiirttemberg, Germany; long. 8°29'E, lat. 47°51'N.

Pliensbachian, P. spinatum Zone, (Lias delta 2).

From the locality of Aselfingen.

Brit. Mus. (Nat. Hist.) 10 5997 (car.: PI. 2:2:6, fig. 2; Pi. 2:2:8,

figs. 2, 3), 10 5998 (car.: PI. 2:2:6, fig. 1), 10 5999 (RV: Pi. 2:2:8,

fig. 1); all from same sample as holotype, clay of P. spinatum Zone at

Aselfingen.

Explanation of Plate 2:2:6

Fig. 1, car., ext. It. lat. (10 5998, 580 ym long); fig. 2, car., ext. rt. lat. (10 5997,

700 ym long) .

Scale A (200 ym ; xi5Q) , fig. 1; scale B (200 ym ; xl25) , fig. 2.

Holotype :

Type locality:

Derivation of name:

Figured specimens:

Stereo-Atlas of Ostracod Shells, 2:2:7 Bairdia aself ingenensis (3 of 4)

Diagnosis: An inflated species with a central depression, a well developed ridge

along the dorsal margin and an extended, tube-like posterior process.

Unornamented other than with the dorsal marginal ridge.

Remarks: This species also occurs at Reutlingen in association with Bairdia hahni

sp. nov. (see Stereo-Atlas of Ostracod Shells, vol. 2, pt. 1, pp. 1-4,

1974) and is restricted to the P. spinatum Zone (Lias delta 2) .

No other inflated, ribbed species of Bairdia is known from the Lower

Jurassic and the closest forms are from the Triassic, from which a

number of authors have described ribbed species (e.g. H. Kozur, Geol .

Palaont. Mitt. Insbruck , 1, 1971). The present species differs from

other Lower Jurassic Bairdia in being ribbed and prominently inflated,

but is otherwise morphologically typical. Associated with B. hahni in

the P. spinatum Zone at Reutlingen in the assemblage described with

that species o

Explanation of Plate 2:2:8

Fig. 1, RV int. lat. (10 5999, 610 ym long); fig. 2, car., ext. post. obi. (10 5997);

fig. 3, car., ext. ant. (10 5997).

Scale A (200 ym ; *125) , fig- 1; scale B (200 ym ; xlOO) , fig. 2; scale C (200 ym ; xi25) ,

fig. 3.

I

I

I

I

I

I

I

I

Stereo-Atlas of Ostracod Shells, 2:2:6

Bairdia aself ingenensis (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:2:8

Bairdia aself ingenensis (4 of 4)

Stereo-Atlas of Ostracod Shells, 2:3:9-16 (1974)

595.337.2 (116.212) (430.1:161.009.48): 551.351+552.523

Ogmoconcha ambo (1 of 8)

ON OGMOCONCHA AMBO LORD AND M00RLEY sp. nov.

by Alan Lord and A. Moorley

(University College London and Exploration Logging International 3 Windsor 3 England)

Ogmoooncha ambo sp. nov.

1962 Ostracod Nr. 12; W. Klingler, Leitfossilien der Mikropalaontologie , p. 104.

1962 ? Ostracod Nr. 13; W. Klingler, ibid., pp. 99, 100.

Holotype: Brit. Mus. (Nat. Hist.) IO 5985, d L V.

Type locality: Clay pit at Reutlingen, Baden- Wiirttemberg, Germany; long. 9°10'E, lat.

48°30'N. Pliensbachian, P. spinatum Zone, (Lias delta 2).

Derivation of name: From the Greek ambon, rim or ridge.

Diagnosis: Surface relief of raised rim around anterior, ventral and posterior

margins, with a mid-ventral threshold onto the mid-valve area.

Explanation of Plate 2:3:10

Fig. 1, d LV, ext. lat. (10 5985, 870 ym long); fig. 2, d LV, int. lat. (10 5988, 840 ym

long) .

Scale A (250 ym ; xlQO) , fig. 1; scale B (250 ym ; x96.) , fig. 2.

Stereo-Atlas of Ostracod Shells, 2:3:11 Ogmoconcha ambo (3 of 8)

Figured specimens: Brit. Mus. (Nat. Hist.) nos. io 5985 (d LV: PI. 2:3:10, fig. 1),

10 5986 (d car.: PI. 2:3:14, fig. 2; Pi. 2:3:16, fig. 2), 10 5987

(d RV: PI. 2:3:12, fig. 3; PI. 2:3:16, figs. 1, 4), IO 5988 (d LV:

PI. 2:3:10, fig. 2), 10 5989 (9 LV: Pi. 2:3:12, fig. 2), IO 5990 (9 RV:

PI. 2:3:12, fig. 1), IO 5991 (9 LV: PI. 2:3:16, fig. 3), 10 5992 (9 RV:

PI. 2:3:14, fig. 1). [Unfigured paratype IO 5993, 9 LV] . All from same

sample as holotype, clay of P. spinatum Zone at Reutlingen.

Remarks: Distinctive late species of Ogmoconcha restricted in our material to

Lias delta 2 (P. spinatum Zone) and, as in Klingler' s record, to S

Germany.

In the earlier description (Klingler, 1962) the rim was compared to

an Arabic '3' on the right valve and an indistinct Latin 'E' on the

left valve, but in our material the median extension of the rim varied

in strength allowing the appearance of a ' C' form rim; any other

variation in configuration of the raised rim is related to valve snape

which depends upon the left over right valve overlap and sexual

dimorphism. Of 483 valves and 20 carapaces, muscle-scars visible in

only one specimen, an apparently incomplete cluster of scars, and no

reason to suppose that this is not an Ogmoconcha species.

Explanation of Plate 2:3:12

Fig. 1, 9 RV, int. lat. (10 5990, 800 ym long); fig. 2, 9 LV , ext. lat. (10 5989, 860 ym

long;; fig. 3, d RV, int. lat. (10 5987, 830 ym long).

Scale A (400 ym ; x77) , fig. 1; scale B (450 ym ; x62) , fig. 2; scale C (400 ym ; x72) ,

fig. 3.

Ogmoconcha ambo (4 of 8)

Stereo-Atlas of Ostracod Shells, 2:3:12

H--‘-

Stereo-Atlas of Ostracod Shells, 2:3:10

Ogmoconcha ambo (2 of 8)

Stereo-Atlas of Ostracod Shells, 2:3:13 Ogmoconcha ambo (5 of 8)

Remarks (contd.): Sexual dimorphism recognised (cf. <3: PI. 2:3:10, figs. 1, 2 with 9:

PI. 2:3:12, fig. 2; Pi. 2:3:16, fig. 3). Ostracod Nr. 13 of Klingler

appears similar to male of present material. However, Klingler describes

Ostracod Nr. 13 from Lias gamma to delta whereas O. ambo is apparently

restricted to Lias delta 2; this range discrepancy can be accounted for

in a number of ways and it seems likely that Ostracods 12 and 13 are

dimorphs of the same species. Ogmoconcha ambo appears early in Lias

delta 2 and rapidly becomes dominant in assemblages which are notable

also for the absence of cytheracean ostracods other than Monoceratina .

Distribution: Upper part of Middle Lias (Lias delta 2, P. spinatum Zone) of SW

Germany. Two localities, in clays, at Reutlingen and Aself ingen, Baden-

Wurttemberg.

Explanation of Plate 2:3:14

Fig. 1, 9 RV, ext. lat. (10 5992, 800 ym long); fig. 2, <3 car., ext. rt. lat. (10 5986,

860 ym long) .

Scale A (300 ym ; x97) , fig. 1; scale B (350 ym ; *90) , fig. 2.

Stereo-Atlas of Ostracod Shells, 2:3:15 Ogmoconcha ambo (7 of 8)

Explanation of Plate 2:3:16

Fig. 1, c 3 RV, post. obi. detail (10 5987); fig. 2, d car. ext. dors. (10 5986); fig. 3,

9 LV, int. lat. (10 5991, 860 ym long); fig. 4, d RV, ant. obi. detail (10 5987).

Scale A (60 ym ; x366) , fig. 1; scale B (550 ym ; x73) , fig. 2; scale C (400 ym ; x75) ,

fig. 3; scale D (150 ym ; x]_43) f fig. 4.

Ogmoconcha ambo (8 of 8)

Stereo-Atlas of Ostracod Shells, 2:3:14

Ogmoconcha ambo (6 of 8)

Stereo-Atlas of Ostracod Shells, 2:3:16

Stereo-Atlas of Ostracod Shells, 2:4:17-20 (1974) Carbonita corrugata (1 of 4)

595.337.12 (113.522) (428.1:162.002.54): 551.312+ 552.527

ON CARBONITA CORRUGATA GREGORY sp. nov.

by Diane Gregory

(Institute of Geological Sciences Leeds 3 England)

Carbonita corrugata sp. nov.

1961 cf. Hilboldtina sp.-, B. J. Taylor & M. A. Calver, Bull, geol . Surv. Gt Br . , no. 17,

p. 12.

1966 Carbonita evelinae (Jones); J. E. Pollard, Palaeontology, vol. 9, pp. 686, 687,

text-figs. 7a-d.

Holotype : Brit. Mus. (Nat. Hist.) io 2985, carapace.

Type locality: Workings of Bearpark Colliery, Co. Durham, England. Nat. Grid Ref.:

NZ 2419943352 (No. 2 Shaft). Upper Carboniferous, Westphalian A,

Hopkins Band in roof of Harvey Coal. Grey shalv mudstone. Non-marine.

Derivation of name: Latin, "wrinkled".

Figured specimens: Brit. Mus. (Nat. Hist.) 10 2985 (car.: PI. 2:4:18, figs, 1, 2;

PI. 2:4:20, fig. 2), IO 5982 (car.: PI. 2:4:20, figs. 1, 3). Both

from type locality.

Explanation of Plate 2:4:18

Fig. 1, car., ext. It. lat. (IO 2985, 950 ym long); fig. 2, car., ext. vent. obi. (10 2985).

Scale A (200 ym ; x80) , figs. 1, 2.

Stereo-Atlas of Ostracod Shells, 2:4:19 Carbonita corrugata (3 of 4)

Diagnosis: Elongate - trapezoid; ornamentation of intermittent longitudinal

ridges .

Remarks: Distinction between C. corrugata and C. evelinae is based on differences

in ornament and lateral outline (for figures of C. evelinae see

F. W. Anderson, Bull. geol. Surv. Gt Br . , no. 32, pp. 69-121, pi. XII,

figs. 6-12, 1970). The longitudinal ornament of C. evelinae is composed

of rows of closely set puncta, whereas that of C. corrugata is made up

of distinct ridges and no punctation has been seen. C. corrugata has a

smaller height :length ratio than C. evelinae and has a more sharply

pointed posterior end. Its lateral outline is less evenly rounded.

Distribution: C. corrugata is apparently confined to beds of the Anthraconaia

modiolaris Zone (upper Westphalian A and lower Westphalian B) .

C. evelinae is typically of Anthraconauta tenuis Zone age (Westphalian

D) , although apparently identical forms have been found as low as the

upper Anthracosia similis - Anthraconaia pulchra Zone (lower

Westphalian C) . The two species do not overlap stratigraphically .

Explanation of Plate 2:4:20

Fig. 1, car., ext. rt. lat. (10 5982, 950 ym long); fig. 2, car., detail of ornament

(10 2985); fig. 3, car., ext. dors. (10 5982).

Scale A (200 ym ; *74) f figs. 1, 3; scale B (40 ym ; *280) * fig. 2.

Stereo-Atlas of Ostracod Shells, 2:4:20

Carbonita corrugata (4 of 4)

Carbonita corrugata (2 of 4)

j; Stereo-Atlas of Ostracod Shells, 2:4:18

Stereo-Atlas of Ostracod Shells, 2:5:21-32 (1974) Cyprideis torosa (1 of 12)

595.337.14 (119.1 + 119.9) (422.3:161.000.51 + 423.3:162.003.50 + 426.1:161.001.52

+ 426.7:161.000.51 + 492:161.005.52): 551.312.4 + 551.313.1

ON CYPRIDEIS TOROSA (JONES)

by T. I. Kilenyi and J. E. Whittaker

(City of London Polytechnic and British Museum {Natural History) 3 London)

Genus CYPRIDEIS Jones, 1857

Type-species (by original designation) : Candona torosa Jones, 1850

Cyprideis torosa (Jones, 1850)

1850 Candona torosa sp. nov. T. R. Jones, Ann. Mag. nat. Hist., ser. 2, vol. 6, p. 27,

pi. Ill, figs. 6a-e.

1857 Cyprideis torosa (Jones); T. R. Jones, Palaeontogr . Soc . (Monogr.), vol. for 1856,

p. 21, pi. II, figs, la-i, woodcut fig. 2 (on p. 16).

1868 Cytheridea littoralis non. nov. G. S. Brady, Nat. Hist. Trans. Northumb., vol. 3,

p. 125.

1870 Cytheridea torosa (Jones) var. teres var. nov. G. S. Brady & D. Robertson,

Ann. Mag. nat. Hist., ser. 4, vol. 6, p. 22 (including footnote by G. S. Brady,

pp . 21, 22).

Explanation of Plate 2:5:22

Fig. 1, d RV (noded', ext. lat. (10 6002, 1010 ym long); fig. 2, 9 LV (noded) , ext. lat.

(10 6003, 950 ym long); fig. 3, $ RV (smooth), ext. lat. (IO 6004, 950 ym long) .

Scale A (250 ym ; *62), figs. 1-3.

Stereo-Atlas of Ostracod Shells, 2:5:23 Cyprideis torosa (3 of 12)

1909 Cytheridea pedaschenkoi sp. nov. E. von Daday, Trudy imp. S.-Peterb0 Obshch. Estest.,

vol. 39, p. 24, pi. I, figs. 7-21, text-figs. 8a-f, 9.

1913 Cytheridea torosa (Jones) var. lenta var. nov. B. Zal^nvi, Mitt. Jb. K. ung . geol .

Anst., vol. 21, p. 120, pi. VI, figs. 18-20, text-figs. 4o, 20a, b.

1938 Cyprideis litoralis (Brady); W. Klie in F. Dahl, Tierwelt Dtl . , vol. 34, no. 3,

p. 156, text-figs. 516-518. (Mis-spelling).

1964 Cyprideis torosa (Jones); P. A. Sandberg, Stockh. Contr. Geol., vol. 12, p. 91,

pi. X, figs. 18-20; pi. XI, figs. 1-10 (q. v. for detailed synonymy).

Lectotype: (here designated) Brit. Mus. (Mat. Hist.) no. 10 6002, d RV (noded),

from slide no. I 6466-9. Almost certainly the specimen figured by

Jones, 1850, pi. Ill, fig. 6c; 1857, pi. II, fig. lb.

[Paralectotypes : 10 6003, 9 LV (noded), from slide no. I 6466-9;

IN 41844, d LV (noded), now slightly damaged, not refigured in the

present paper. These specimens are believed to be those figured by

Jones in his 1850 (pi. Ill, fig. 6b) and 1857 (pi. II, fig. la) papers

respectively] .

Type locality: Pleistocene sands of Grays, Essex, SE England (long. 0°20'E, lat.

51°29'N) .

Explanation of Plate 2:5:24

Fig. 1, 9 car. (noded), ext. dors. (IO 6005, 1050 ym long); fig. 2, d car. (noded), ext.

dors. (IO 6006, 1160 ym long); fig. 3, 9 car. (smooth), ext. dors. (IO 6007, 960 ym long).

Scale A (250 ym ; *58), figs. 1-3.

Stereo-Atlas of Ostracod Shells, 2:5:24

Cyprideis torosa (4 of 12)

-7

i Stereo-Atlas of Ostracod Shells, 2:5:22

Cyprideis torosa (2 of 12)

Stereo-Atlas of Ostracod Shells, 2:5:25 Cyprideis torosa (5 of 12)

Diagnosis: Female carapace sub-ovate in lateral view, but with a nearly straight

venter; inflated posteriorly in dorsal view. Male more laterally

elongate, the dorsal margin having more pronounced cardinal angles;

subparallel in dorsal view, tapering evenly at extremities. Valves of

both adults and juveniles variably punctate, sometimes nodose with up

to 7 sites of lateral tubercular development on each adult valve (see

text-fig. 1). Dorso-median sulcus weak. Posteroventral spine usually

strongly developed on right valve.

Figured specimens: Brit. Mus. (Nat. Hist.) nos. 10 6002 ( d RV: PI. 2:5:22, fig. 1),

10 6003 (9 LV: Pi. 2:5:22, fig. 2), 10 6004 (9 RV: Pi. 2:5:22, fig. 3),

10 6005 (9 car.: Pi. 2:5:24, fig. 1; PI. 2:5:32, fig. 3), 10 6006

(d car.: Pi: 2:5:24, fig. 2; PI. 2:5:32, fig. 2), 10 6007 (9 car.:

PI. 2:5:24, fig. 3; Pi. 2:5:32, fig. 1), 10 6008 (9 LV: Pi. 2:5:26,

figs. 1, 3), 10 6009 (9 RV: Pi. 2:5:26, fig. 2), 10 6010 (rf RV:

PI. 2:5:30, fig. 1), 10 6011 (9 LV: PI. 2:5:30, fig. 2), 10 6012 (juv-1

RV: PI. 2:5:26, fig. 4), 10 6013 (juv-1 RV: Pi. 2:5:28, fig. 1),

10 6014 (juv-1 RV: PI. 2:5:28, fig. 2), 10 6015 (juv-1 RV: PI. 2:5:28,

fig. 3) . 10 6002 and 10 6003 from type locality. 10 6004 from slide no.

50.42, Gravesend ditches, Kent, SE England (long. 0°25'E, lat. 51°26'N);

Recent; one of the original specimens of the smooth form given to

Jones by a Mr. Pickering (see Jones 1850, 1857) .

Explanation of Plate 2:5:26

Fig. 1, 9 LV (smooth), int. lat. hinge (10 6008, 1000 ym long); fig. 2, 9 RV (smooth), int.

lat. hinge (10 6009, 930 ym long); fig. 3, 9 LV (smooth), int. muse. sc. (10 6008); fig. 4,

juv-1 RV (smooth), ext. lat. (10 6012, 750 ym long).

Scale A (250 ym ; x80) , figs. 1, 2, 4; scale B (100 ym ; *160) , fig* 3.

'Stereo-Atlas of Ostracod Shells, 2:5:27 Cyprideis torosa (7 of 12)

Figured specimens: 10 6005, 10 6006 from Wroxham Broad, Norfolk, E England (long. 1°24'E,

(contd.) lat. 52°42'N); Recent, freshwater; from Norman Coll. (1911.11.8) slide

no. M 3431 in Brit. Mus. (Nat. Hist.), coll. Oct. 1869. 10 6007 from

Decoy Point, Blackwater Estuary, Essex, SE England (long. 0°45'E,

lat. 51°43'N); Recent, salinity 8%o ; coll. T. I. Kilenyi. 10 6008 -

10 6012 from Abbotsbury Swannery, Fleet, Dorset, S England (long.

2°36'W, lat. 50°39'N); Recent, salinity 3%o ; coll. J. E. Whittaker.

10 6013, 10 6014 from Zuider Zee deposits, E Flevoland Polder, Holland

(long. 5°40'E, lat. 52°35'N); sub-Recent; coll. J. E. Robinson. 10 6015

from Greenlands Quarry, Purfleet, Essex, SE England (long. 0°15'E, lat.

51°29'N); Unio bed. Pleistocene sands (? Hoxnian) ; coll. T. I. Kilenyi.

Remarks: Name: See Sandberg's comprehensive historical review of this complex

nomenclatural problem (1964, pp. 81-85). We regard both noded and

smooth forms of C. torosa as a single species. The nature of variation

and their sympatric occurrence precludes the possibility of there being

two separate subspecies. C. littoralis (Bradv) is clearly a junior

synonym, but it was perpetuated, particularlv in zoological literature,

until quite recently. Bradv himself withdrew the name in a footnote to

his paper with Robertson (1870, pp. 21, 22). Unfortunately, his

explanation seems to have been generally overlooked.

Explanation of Plate 2:5:28

Figs. 1-3, variation in node pattern. Fig. 1, juv-1 RV, ext. lat. (10 6013, 770 ym long);

fig. 2, juv-1 RV, ext. lat. (10 6014, 700 ym long); fig. 3, juv-1 RV, ext. lat. (10 6015,

710 ym long) .

Scale A (250 ym ; *80) , figs. 1-3.

Stereo-Atlas of Ostracod Shells, 2:5:28

Cyprideis torosa (8 of 12)

Stereo-Atlas of Ostracod Shells, 2:5:26

Cyprideis torosa (6 of 12)

Stereo-Atlas of Ostracod Shells, 2:5:29

Cyprideis torosa (9 of 12)

Remarks (contd.):

Text-fig. 1

cf RV, notation of nodes

(after Sandberg, 1964) .

Noding: The considerable literature concerning low

salinity and noding in ostracods has been

reviewed by one of us (Kilenyi, Micropaleontology ,

vol. 18, pp. 47-63, 1972) with particular reference

to C. torosa and it is concluded that this is a

case of balanced genetic polymorphism and is not

a straightforward physiological reaction to

lowered salinity. Nodes can occur at seven

discrete sites on the valve (see text-fig. 1,

after Sandberg, 1964) . Node 2 may be the only one

developed, but it is usually accompanied by no. 1

and often by no. 3 also; these three form the

"basic triangle". Beyond this triangle, no. 6 is

the most frequent, followed by no. 4; the

remaining two nodes (nos. 5 and 7) are developed

very rarely. The total complement of 7 nodes in

this species has only been seen by us in the

Grays-Purf leet Pleistocene material (see

PI. 2:5:22, fig. 1). Nodes 4-7 are never

developed in the absence of the basic triangle.

Explanation of Plate 2:5:30

Fig. 1, d RV (smooth), int. lat. showing soft-parts (10 6010, 1060 ym long); fig. 2, $ LV,

int. lat. showing soft-parts (10 6011, 1020 ym long) , note posterior saddle-shaped

platform with eggs.

Scale A (250 ym ; x80) , figs. 1, 2.

Stereo-Atlas of Ostracod Shells, 2:5:31 Cyprideis torosa (11 of 12)

Distribution: Found in salinities of 0 .l%n ->60%o in inland ponds, lakes, lagoons,

estuaries, fjords, deltas and other marginal marine environments

down to a depth of c. 30 m. The preferred substratum appears to be

mud or sandy mud, but it sometimes lives on algae. The species is

eurythermal i.e. in water temperatures of 0° to c. 25°C.

Widespread throughout Europe (N as far as Iceland) , W and Central

Asia, and the Mediterranean region of the Middle East and N Africa.

A new record is provided by Dr. S. B. Bhatia, Punjab Univ. , from

N India [material in Brit. Mus. (Nat. Hist.)]; the specimens are

believed to be sub-Recent. Prof. G. Hartmann of Hamburg kindly sent

us a male (with soft-parts) from Lake Rudolph, Kenya, which we can

confirm as being valid. Forms assigned to C. torosa in N America,

however, are undoubtedly different species.

The stratigraphical range is somewhat more difficult to establish.

The earliest record of the species is given by Zalanyi (1913) who

described C. torosa var. lenta from the lower Sarmatian of Hungary.

There are several occurrences from the Pliocene sediments of Central

Europe and it seems to become widespread in the Pleistocene over

Europe and Asia.

Explanation of Plate 2:5:32

Fig. 1, 9 car. (smooth), post. dors, region showing simple pore & setal tassel (10 6007);

fig. 2, d car. (noded) , mid. dors, region showing sieve-type pore & puncta (10 6006);

fig. 3, 9 car., dors, view of node 3 on RV (10 6005).

Scale A (10 ym ; *1500) , fig. 1; scale B (20 ym ; x750) , figs. 2, 3.

Cyprideis torosa (10 of 12)

Stereo-Atlas of Ostracod Shells, 2:5:32

Cyprideis torosa (12 of 12)

Stereo-Atlas of Ostracod Shells, 2:5:30

Stereo-Atlas of Ostracod Shells, 2:6:33-44 (1974) Urocythereis favosa (1 of 12)

595.337.14 (118.22 + 119.9) (262.4:161.026.38 + 454:161.009.44 + 560:161.035.37): 551.351

+ 552.513

ON UROCYTHEREIS FAVOSA (R0EMER)

by Neriman Doruk

(University of Leicester 3 England)

Genus UROCYTHEREIS Ruggieri, 1950

Type-species (original designation) : Cytherina favosa Roemer, 1838

Diagnosis: Carapace elongate-ovate or subquandr angular , surface coarsely reticulate

or foveolate. Valves heavily calcified. Inner lamella moderately wide,

marginal pore canals numerous. Hinge amphidont/heterodont . Normal pores

large and sieve type; 2-3 frontal scars, 4-7 adductor scars.

Explanation of Plate 2:6:34

Fig. 1, $ RV, ext. lat. (10 5854, 775 ym long); fig. 2, d LV, ext. lat. (10 5855, 900 ym

long); fig. 3, detail of caperate solum & sieve-plates (10 5855).

Scale A (250 ym ; x105) , fig. 1; scale B (250 ym ; x88) , fig. 2; scale C (20 ym ; x616) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:6:35 Urocythereis favosa (3 of 12)

Urocythereis favosa (Roemer, 1838)

1838 Cytherina favosa F. Roemer, Neues Jb. Miner. Geog. Geol . Pet., p. 516, pi. 6, fig. 7.

1880 Cythere sororcula G. Seguenza, Atti Accad. naz . Lincei Memorie, ser. 3, vol. 6,

pp. 192, 289, pi. 14, fig. 18.

1900 Cythere mirabilis G. Capeder, Atti Accad. Sci . , Torino, vol. 35, p. 10, figs. 18a, b.

1950 Urocythereis favosa (Roemer); G. Ruggieri, G. Geol., ser. 2, vol. 21, p. 28, pi. 1,

fig. 4, text-figs. 10-14.

1969 Urocythereis favosa favosa (Roemer); F. Uliczny, Hemicytheridae und Trachyleberididae

aus dem Pliozan der Insel Kephallinia , Dissertation Univ. Munich, p. 61.

1969 Urocythereis favosa exedata F. Uliczny, ibid., p. 62, pi. 4, fig. 5; pi. 15, fig. 4.

1969 Urocythereis sororcula (Seguenza); F. Uliczny, ibid., p. 67, pi. 4, fig. 8; pi. 16,

fig. 1.

1972 Urocythereis favosa favosa (Roemer); W. Sissingh, Bull. Micropaleontol . Utrecht,

no. 6, p. 127.

1972 Urocythereis favosa exedata Uliczny; W. Sissingh, ibid., p. 127, pi. 10, fig. 6.

1972 Urocythereis sororcula (Seguenza); W. Sissingh, ibid., p. 128, pi. 10, fig. 9.

Explanation of Plate 2:6:36

Fig. 1, 9 LV, int. lat. (broken, 820 ym long); fig. 2, d RV, int. lat. (10 5856, 780 ym

long); fig. 3, detail of papillate solum, foveolate muri & rimmed sieve-plates (10 5857).

Scale A (250 ym ; x87) , fig. 1; scale B (250 ym ; x89) , fig. 2; scale C (20 ym ; x546) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:6:37 Urocythereis favosa (5 of 12)

Type specimens: Repository not known.

Type locality: Castellarquato, Italy; approx, lat. 44°51'N, long. 9°52'E. Pliocene.

Fig. 1, d RV, ext. lat. (10 5858, 770 ym long); fig. 2, $ RV, ext. lat. (broken, 760 ym

long); fig. 3, 9 LV, ext. lat. (10 5859, 810 ym long).

Scale A (250 ym ; *84) , figs. 1, 2; scale B (250 ym ; *80) , fig. 3.

Stereo-Atlas of Ostracod Shells, 2:6:39 Urocythereis favosa (7 of 12)

Fig. 1, 9 RV, ext. lat. (10 586,0, 770 ym long); fig. 2, 9 LV, ext. lat. (10 5861, 830 ym

long); fig. 3, 9 RV, ext. lat. (10 5862, 840 ym long).

Scale A (250 ym ; x83) , fig. 1; scale B (250 ym ; *77) , figs. 2, 3.

Stereo-Atlas of Ostracod Shells, 2:6:40

<Urocythereis favosa (8 of 12)

Stereo-Atlas of Ostracod Shells, 2:6:41

Urocythereis favosa (9 of 12)

Explanation of Plate 2:6:42

Figs. 1-4, post, elements of LV hinges: fig. 1, 10 5855; fig. 2, 10 5863; fig. 3, 10 5864;

fig. 4, broken. Figs. 5, 6, post, elements of RV hinges: fig. 5, 10 5865; fig. 6, 10 5854.

Scale A (50 ym ; *352) , figs. 1-4; scale B (50 ym ; x305) , figs. 5, 6.

Stereo-Atlas of Ostracod Shells, 2:6:43 Urocythereis favosa (11 of 12)

Explanation of Plate 2:6:44

Fig. 1, LV int. muse. sc. (10 5855); fig. 2, LV int. muse. sc. (10 5866); fig. 3, RV int.

muse. sc. (10 5867) .

Scale A (100 ym ; *408) , figs. 1-3.

Stereo-Atlas of Ostracod Shells, 2:6:44

Urocythereis favosa (12 of 12)

Stereo-Atlas of Ostracod Shells, 2:6:42

Urocythereis favosa (10 of 12)

Stereo-Atlas of Ostracod Shells, 2:7:45-48 (1974) Urocythereis seminulum (1 of 4)

595.337.14 (118.213) (457.1:161.014.41 + 560:161.036.36 + 560:161.035.37)': 551.351 + 552.513

+ 552.541

ON UROCYTHEREIS SEMINULUM (SEGUENZA)

by Neriman Doruk

(University of Leicester s England)

Urocythereis seminulum (Seguenza, 1880)

1880 Cythere seminulum G. Seguenza, Atti Accad. naz. Lincei Memorie, ser. 3, vol. 6,

p. 124, pi. 12, figs. 4, 4a.

1963 Urocythereis seminulum (Seguenza); G. Ruggieri, Boll. Soc . paleont. ital . , vol. 2,

no. 1, p. 6, pi. 1, figs. 11, 11a, text-fig. 3.

Neotype: OCR. SI. no. 1420/1 (9 RV) ; designated by Ruggieri (op. cit.).

Istituto di Geologia e Paleontologia, University of Palermo, Italy.

Type locality: Benestare (approx, long. 16°10'E, lat. 38°10'N), Calabria, S Italy.

Uppermost part of Middle Miocene (Tortonian) . Clays with molluscs,

bryozoa and foraminifera.

Diagnosis: Reticulate with irregularly rounded fossae, arranged in diagonal rows

in posterodorsal region, parallel to anterior and ventral margins

elsewhere .

Explanation of Plate 2:7:46

Fig. 1, 9 RV, ext. lat. (10 5847, 780 ym long); fig. 2, d LV, ext. lat. (10 5848, 750 ym

long); fig. 3, detail of sieve-plate (10 5847).

Scale A (250 ym ; xi06) , fig. 1; scale B (250 ym ; *111) , fig. 2; scale C (10 ym ; ><1590) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:7:47 Urocythereis seminulum (3 of

.Figured specimens:

Remarks:

Distribution :

Explanation of Plate 2:7:48

Fig. 1, d LV, int. lat. (10 5849, 740 ym long); fig. 2, 9 RV, int. lat. (10 5847); fig. 3,

LV, int. muse. sc. (10 5849).

Scale A (250 ym ; x92) , fig. 1; scale B (250 ym ; x89) , fig. 2; scale C (50 ym ; x570) ,

fig. 3.

Brit. Mus. (Nat. Hist.) 10 5847 (9 RV: Pi. 2:7:46, figs. 1, 3; Pi. 2:7:48j

fig. 2), 10 5848 (d LV: Pi. 2:7:46, fig. 2), 10 5849 (d LV: PI. 2:7:48,

figs. 1, 3). 10 5847 from the base of a stream section 200 m S of Sarili,

Antakya area of Turkey; approx, long. 36°13'E, lat. 36°07'N; Tortonian;

bioclastic limestone, presumed shallow marine. 10 5848 from San Giovanni,

Italy (kindly given by G. Ruggieri); approx, long. 14°45'E, lat. 41°35'N;

Sahelian (Upper Miocene) . 10 5849 from a road section (7 m from the base)

2 km S of Salba^, Adana area of Turkey; approx, long. 35°08'E, lat.

37°07'N; Tortonian (Miocene); yellow sandstone with molluscs, presumed

shallow marine.

Size of fossae very variable. Subcentral tubercle with or without fossae.

Frontal scars 2 or 3 , with tendency to subdivide further variably;

adductor scars are likewise divided. Sexual dimorphism: very pronounced,

males more elongate

Text-figs, la-c,

Variation in

muscle-scar

pattern.

o°

kb

CD

$ oo

° 9?

o

la

lb

lc

Middle to Upper Miocene; Italy and Turkey.

Urocythereis seminulum (4 of 4)

Stereo-Atlas of Ostracod Shells, 2:7:48

\ Stereo-Atlas of Ostracod Shells, 2:7:46

Urocythereis seminulum (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:8:49-52 (1974) Urocythereis labyrinthica (1 of 4)

595.337.14 (118.22 + 119.2) (457.5:161.017.40 + 495.4:161.020.38): 552.523

ON UROCYTHEREIS LABYRINTHICA ULICZNY

by Neriman Do rule

(University of Leicester, England)

Urocythereis labyrinthica Uliczny, 1969

1969 Urocythereis labyrinthica labyrinthica F. Uliczny, Hemicytheridae und Trachyleberidae

aus dem Pliozan der Insel Kephallinia , Dissertation, Univ. Munich, p. 63, pi. 4, fig.

6; pi. 15, fig. 5.

1969 Urocythereis labyrinthica aperta F. Uliczny, ibid., p. 64, pi. 15, figs. 6, 7.

Iiolotype: Slg. Munich Ostr. 332, $ LV.

Type locality: Thiramona (profile 40) , Cephalonia (Uliczny, op. cit. , p. 63) ; Pliocene.

Figured specimens: Brit. Mus. (Nat. Hist.) 10 5851 (9 LV: Pi. 2:8:50, fig. 1), 10 5852 (d LV:

PI. 2:8:50, fig. 2; PI. 2:8:52, figs. 1, 2), 10 5853 (LV: PI. 2:8:52,

figs. 3, 4). 10 5851 from same sample as holotype of U. labyrinthica

labyrinthica, Thiramona, Cephalonia (kindly given by Prof. H. Hagn) ;

approx, long. 20°41'E, lat. 38°04'N; Pliocene. 10 5852 and IO 5853 from

near Monumento al Marinaio, Brindisi, Italy (kindly given by Prof. G.

Ruggieri) ; approx, long. 17°57'E, lat. 40o37'N; Calabrian, clays.

Explanation of Plate 2:8:50

Fig. 1, 9 LV, ext. lat. (10 5851, 990 ym long); fig. 2, d LV, ext. lat. (10 5852, 975 ym

long) .

Scale A (500 ym ; x86) , figs. 1, 2.

Stereo-Atlas of Ostracod Shells, 2:8:51

Urocythereis labyrinthica (3 of 4)

Diagnosis: Labyrinthic ornament is characteristic.

Remarks: Uliczny (op. cit.) distinguished two subspecies on the basis of size and

shape differences of labyrinths. Both are recorded from the same

localities. I have found the width and the extent of labyrinths are

variable and the variation is continuous. I can not therefore agree that

there is subspecific differentiation. Posterior socket of left valve hinge •

with or without central tubercle (see PI. 2:8:52, figs. 2, 3). Frontal

scars 2 or 3; adductor scars 4, 5 or 6 with undivided or divided median

adductor scars. Sexual dimorphism: males more elongate (see PI. 2:8:50,

figs. 1 , 2) .

Distribution : Pliocene in Cephalonia; Pleistocene (Calabrian) in Italy.

Editorial note : Sissingh (1972, Bull. Micropaleontol . Utrecht , no. 6, p. 128, pi. 10,

fig. 7) regards U. labyrinthica Uliczny as a junior synonym of Cythere

lumbricularis Terquem (1878, Mem. Soc. geol . Fr . , ser. 3, vol. 1, p. 105,

pi. 12 , fig. 6) .

Explanation of Plate 2:8:52

Fig. 1, d LV, int. lat. (10 5852); figs. 2 (10 5852), 3 (10 5853), post, element of LV

hinge; fig. 4, LV, int. muse. sc. (10 5853).

j

Scale A (500 ym ; x74) , fig. 1; scale B (50 ym ; x296) , figs. 2, 3; scale C (100 ym ; *407) ,

fig. 4.

"}~j-

j; Stereo-Atlas of Ostracod Shells, 2:8:50

Urocythereis labyrinthica (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:8:52

Urocythereis labyrinthica (4 of 4)

Stereo-Atlas of Ostracod Shells, 2:9:53-56 (1974) Cytherella postdenticulata (1 of 4)

595.337.3 (118.22) (560:161.036.36): 551.352+ 552.523

ON CYTHERELLA POSTDENTICULATA OERTLI

by Neriman Do rule

(University of Leicester 3 England)

Cytherella postdenticulata Osrtli, 1961

1961 Cytherella postdenticulata H. J. Oertli, Riv. ital . Paleont. Stratigr . , vol. 67,

no. 1, p. 19, pi. 1, figs. 1-11.

1972 Cytherella (Cytherella) postdenticulata Oertli; W. Sissingh, Bull. Micropaleontol .

Utrecht , no. 6, p. 68, pi. 2, fig. 1.

Ilolotype: No. 1339 (carapace) in the collection of the Geology Institute in Milan.

Type locality: Cessole-Bricco della Croce, N Italy; approx, long. 8°13'E, lat. 44°39'N.

Miocene (Langhian) .

Explanation of Plate 2:9:54

Fig. 1, LV ext. lat. (10 5739, 760 ym long); fig. 2, LV ext., muse. sc. area (10 5739);

fig. 3, LV, obi. post. (10 5739) .

Scale A (250 ym ; xio5) , fig- 1; scale B (50 ym ; x420) , fig. 2; scale C (250 ym ; xi02) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:9:55

Cytherella postdenticulata (3 of 4)

Figured specimens: Brit. Mus. (Nat. Hist.) 10 5739 (LV: 2:9:54, figs. 1-3; Pi. 2:9:56,

figs. 2, 3), 10 5740 (LV: Pi. 2:9:56, fig. 1). Both specimens from a

stream section about 2.5 km SE of the village of Sanli, Antakya area

of Turkey; approx, long. 36°12'E, lat. 36°07'N. Pliocene; grey clay

with molluscs and f oraminifera , presumed deep marine.

Diagnosis: Shells rather tumid. There is a fringe-like auricular projection in the

posteroventer of the left valve but not the right valve, and a similar

but longer expansion of the whole anterior margin in both valves (see

PI. 2:9:54, figs. 1, 3; PI. 2:9:56, figs. 1-3). Papillate posteriorly.

Remarks: The posterior denticulation noted by Oertli (op. cit.) is not developed;

perhaps the papillate posterior was mistaken for marginal spines.

Distribution: Miocene in Italy and Greece (Crete and Gavdos) . Pliocene in Turkey.

I

Explanation of Plate 2:9:56

Fig. 1, LV int. lat. (10 5740, 740 ym long); fig. 2, LV, obi. vent. (10 5739); fig. 3,

LV, post. (10 5739) .

Scale A (250 ym ; x92) , fig. 1; scale B (250 ym ; x88) , fig. 2; scale C (250 ym ; XH2) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:9:54

Cytherella postdenticulata (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:9:56

Cytherella postdenticulata (4 of 4)

Stereo-Atlas of Ostracod Shells, 2:10:57-60. (1974) Orionina tegminata (1 of 4)

595.337.14 (118.213) (560:161.036.36): 551.351+ 552.513+ 552.541

ON ORIONINA TEGMINATA DORUK sp. nov.

by Neriman Doruk

(University of Leicester s England)

Orionina tegminata sp. nov.

Holotype: Brit. Mus. (Nat. Hist.) 10 4907, 9 RV.

Type locality: A stream cutting about 250 m S of the village of Sarili, Turkey;

approx, long. 36°13'E, lat. 36°07'N. Tortonian (Upper Miocene) .

Bioclastic limestone with molluscan shell fragments, presumed

sublittoral .

Derivation of name: Latin, "covered", referring to the development of the tegmen.

Figured specimens: Brit. Mus. (Nat. Hist.) 10 4907 (9 RV: PI. 2:10:58, figs. 1, 3;

PI. 2:10:60, fig. 2), 10 4908 (d LV: PI. 2:10:58, fig. 2; PI. 2:10:60,

figs. 1, 3). 10 4907 from the type locality, 1 m from the base of the

section. 10 4908 from a road cutting 1 km SW of Babatorun, Turkey;

approx, long. 36°15'E, lat. 36°04'N; Upper Miocene; yellow sandstone

with abundant mollusca and foraminifera , presumed littoral.

Explanation of Plate 2:10:58

Fig. 1, 9 RV, ext. lat. (10 4907, 780 ym long); fig. 2, d LV, ext. lat. (10 4908, 750 ym

long); fig. 3, detail of normal pores & papillation in the fossae (10 4907).

Scale A (250 ym ; ><97), fig. 1; scale B (250 ym ; xl02) , fig. 2; scale C (50 ym ; *582) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:10:59" Orionina tegminata (3 of 4)

Diagnosis: Tegminate, sola papillate.

Remarks: Narrow vestibule and polyfurcate marginal pore canals (characteristic

of the genus) , but no trace of the secondary fusion of the free part

of the inner lamella could be observed. Always three frontal scars;

5-7 adductor scars with divided or undivided median and dorsal scars

(see PI. 2:10:60, fig. 3 and text-figs, la, b) .

Text-figs, la, b.

Variation in

muscle-scar

pattern.

la lb

§

§1%

►

juveniles more triangular in shape, the costae not wholly developed,

the fossae rounded instead of elongate and arranged parallel to the

anterior margin. Sexual dimorphism: females a little higher and shorter

than males.

Distribution : Upper Miocene of Antakya region,

Turkey.

Explanation of Plate 2:10:60

Fig. 1, d LV, int. lat. (10 4908); fig. 2, 9 RV, int. lat. (10 4907); fig. 3, LV, int.

muse. sc. (10 4908) .

Scale A (250 ym ; xgi) , fig. 1; scale B (250 ym ; x89) , fig. 2; scale C (100 ym ; x300) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:10:58

Orionina tegminata (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:10:60

Orionina tegminata (4 of 4)

Stereo-Atlas of Ostracod Shells, 2:11:61-64 (1974) Orionina bireticulata (1 of 4)

595.337.14 (118.213) (560:161.036.36): 551.351+ 552.513

ON ORIONINA BIRETICULATA DORUK sp. nov.

by Neriman Doruk

C University of Leicester 3 England)

Orionina bireticulata sp. nov.

Holotype: Brit. Mus. (Nat. Hist.) 10 5775, d RV.

Type locality: A road section 1 km SW of Babatorun, Turkey; approx, long. 36°15'E,

lat. 36°04'N. Uppermost Miocene. Yellow sandstone with molluscan

shell fragments and foraminifera; presumed littoral.

Derivation of name: Latin "twice reticulate", referring to the second order reticulation

(see PI. 2:11:62, fig. 3).

Explanation of Plate 2:11:62

Fig. 1, d RV, ext. lat. (10 5773, 760 ym long); fig. 2, 9 RV, ext. lat. (10 5774, 735 ym

long); fig. 3, development of second order reticulation in caperate fossae (10 5774).

Scale A (250 ym ; xi07) , fig. 1; scale B (250 ym ; xl06) , fig. 2; scale C (10 ym ; xi060) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:11:63 Orionina bireticulata (3 of 4)

Figured specimens: Brit. Mus. (Nat. Hist.) 10 5773 (d RV: Pi. 2:11:62, fig. 1), 10 5774

(9 RV: PI. 2:11:62, figs. 2, 3; Pi. 2:11:64, fig. 3), 10 5775 (d RV:

Pi. 2:11:64, fig.s 1, 2).

All specimens are from the base of the section at the type locality.

Diagnosis: Carinate with 8-10 longitudinal ridges; reticulate between carinae.

Sola caperate; in some fossae caperation develops into a second order

reticulation (see PI. 2:11:62, fig. 3). Caudal process well developed.

Remarks: Median adductor scars undivided (see Pi. 2:11:64, fig. 2) or both

divided; two frontal scars. Sexual dimorphism: males more elongate

(cf. d: PI. 2:11:62, fig. 1, with 9: Pi. 2:11:62, fig. 2).

Distribution: Known so far only from the type locality, Turkey.

Explanation of Plate 2:11:64

Fig. 1, d RV, int. lat. (10 5775, 740 ym long); fig. 2, RV, int. muse. sc. (10 5775); fig. 3,

detail of a sieve-plate (10 5774) .

Scale A (250 ym ; x95) , fig. 1; scale B (50 ym ; x475) , fig. 2; scale C (10 ym ; x2802) ,

fig. 3.

Stereo-Atlas of Ostracod Shells, 2:11:64 Orionina bireticulata (4 of 4)

4-

Stereo-Atlas of Ostracod Shells, 2:12:65-68 (1974) Triebelina raripila (1 of 4)

595.337.11 (118.213+ 119.9) (560:161.036.36+ 262.4:161.026.38): 551.351+ 552.513

ON TRIEBELINA RARIPILA (G. IV. MULLER)

by Neriman Doruk

(University of Leicester 3 England)

Triebelina raripila (G. W. Muller, 1894)

1894 Bairdia raripila G. W. Muller, Zool . Jber . Neapel, no. 21, p. 274, pi. 13, fig. 37;

pi. 15, figs. 5-7, 28.

1912 Nesidea raripila (Muller); G. W. Muller, Ostracoda, in Das Tierreich, Auftrage Kgl.

Preuss. Akad. Wiss. (Berlin), vol. 31, p. 243.

1968 Bairdia raripila (Muller); M. Masoli, Mem. Mus . Tridentino Sci. Nat., vol. 17, fasc. 1,

p. 10, pi. 1, fig. 5; pi. 4, figs. 44-46.

Holotype: In the collections of the Crustacea Division, Zoological Museum, Berlin,

Germany; no. 9206 (under Nesidea) . See Diebel, Geologie , vol. 11, no. 2,

p. 244, 1962.

Type locality: Bay of Naples (in shallow waters; , Italy.

Explanation of Plate 2:12:66

Fig. 1, d RV, ext. lat. (broken, 640 ym long); fig. 2, 9 LV, ext. lat. (10 5822, 685 ym

long) .

Scale A (250 ym ; xl30) , fig. 1; scale B (250 ym ; xl24) , fig. 2.

Stereo-Atlas of Ostracod Shells, 2:12:67 Triebelina raripila (3 of 4)

Brit. Mus. (Nat. Hist.) 10 5822 (9 LV: Pi. 2:12:66, fig. 2; Pi. 2:12:68,

figs. 1, 3). The specimen (cf RV) figured in PI. 2:12:66, fig. 1, and

PI. 2:12:68, fig. 2 was broken after preparation and photography.

10 5822 dredged from Urla Bay off the W coast of Turkey; approx. long.

26°47'E, lat. 38°19'N; Recent. Broken specimen from a road section

about 2 km S of Com, Antakya area of Turkey; approx, long. 36°15'E, lat.

36°02'N; Upper Miocene; yellow sandstone with molluscs and foraminifera,

presumed shallow marine.

Elongate, punctate; the shell is inflated longitudinally below mid-line

in both anterior and posterior halves.

Sexual dimorphism: distinct, males more elongate (cf. d : Pi. 2:12:66,

fig. 1 with 9: PI. 2:12:66, fig. 2).

Recent in Mediterranean. Upper Miocene in Turkey.

Explanation of Plate 2:12:68

Fig. 1, 9 LV, int. lat. (10 5822); fig. 2, d RV, int. lat. (broken); fig. 3, LV, int. muse,

sc. (10 5822) .

Scale A (250 ym ; x99) , fig. 1; scale B (250 ym ; xi08) , fig. 2; scale C (100 ym ; x495) ,

fig. 3.

Figured specimens:

Diagnosis :

Remarks:

Distribution :

Stereo-Atlas of Ostracod Shells, 2:12:66 Triebelina raripila (2 of 4)

Stereo-Atlas of Ostracod Shells, 2:12:68

Triebelina raripila (4 of 4)

STEREO-ATLAS OF OSTRACOD SHELLS

Contents, Volume 2, Part 1

2: 1:1-4 On Bairdia hahni Lord and Moorley sp. nov. ; by Alan Lord and A. Moorley (£0.45)

2 : 2 : 5— 8 On Bairdia aselfingenensis Lord and Moorley sp. nov.; by Alan Lord and A. Moorley (£0.45)

2:3:9-16 On Ogmooonoha arnbo Lord and Moorley sp. nov.; by Alan Lord and A. Moorley (£0.90)

2:4:17-20 On Carbonita corrugata Gregory sp. nov.; by Diane Gregory (£0.45)

2:5:21-32 On Cyprideis torosa (Jones); by T. I. Kilenyi and J. E. ’Whittaker (£1.35)

2:6:33-44 On Urooythereis favosa (Roemer) ; by N. Doruk (£1.35)

2:7:45-48 On Urooythereis seminulum (Seguenza) ; by N. Doruk (£0.45)

2:8:49-52 On Urooythereis labijrinthioa Uliczny; by N. Doruk (£0.45)

2:9:53-56 On Cytherella postdentioulata Oertli; by N. Doruk (£0.45)

2:10:57-60 On Orionina tegminata Doruk sp. nov.; by N. Doruk (£0.45)

2:11:61-64 On Orionina biretioulata Doruk sp. nov.; by N. Doruk (£0.45)

2:12:65-68 On Triebelina raripila (G. W. Muller); by N. Doruk (£0.45)

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