A Stereo-Atlas of Ostracod Shells

edited by R. H. Bate, J. W. Neale, David J. Siveter and

P. C. Sylvester-Bradley

Volume 3, Part 2; 22nd December 1976

Printed and published by The Broadwater Press Ltd,
Welwyn Garden City, Hertfordshire, England

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 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, Istituto e Museo di Geologia dell’Universita di Palermo, Corso Tukory, 131,
90134 Palermo, Italy.

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.

Acknowledgements

This Volume of the Stereo- Atlas has been aided by generous financial support from Robertson
Research International Ltd. and from the Shell International Petroleum Co. Ltd.

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., 158 South Station, Yonkers, New York 10705, U.S.A.

Stereo-Atlas of Ostracod Shells 3 (15) 73-76 (1976) Glyptocythere polita (1 of 4)

595.337.14 (116.222) (427.4:162.001.54): 551.351 + 552.54

ON GLYPTOCYTHERE POLITA BATE

by Carol Mayes

( British Museum [Natural History], London)

Glyptocythere polita Bate, 1965

1965 Glyptocythere polita sp. nov. R. H. Bate, Bull. Br. Mus. nat. Hist. ( Geol .) 11 (3), 107, pi. 5, figs. 8-11, pi. 6, figs. 1-9.
Holotype: Brit. Mus. (Nat. Hist.) IO 1724, $ carapace.

Type locality : Bed 7, Glyptocythere polita Zone, Grey Limestone Series, Bajocian; Hundale Point, Cloughton,
Yorkshire, England. Grid Ref.: TA 024949.

Figured specimens: Brit. Mus. (Nat. Hist.) nos. IO 1724 ($ car. : PI. 3, 74, fig. 2), IO 1726 (3 car. : PI. 3, 74, fig. 3 ; PI. 3,
76, figs. 2, 4), IO 1727 car.: PI. 3, 76, fig. 6), IO 1736 ($ car.: PI. 3, 74, fig. 1; PI. 3, 76, fig. 5),
IO 1743 ($ car.: PI. 3, 76, fig. 1), OS 6853 (juv. car.: PI. 3, 76, fig. 3). Nos. IO 1724, IO 1726,
IO 1727, IO 1736, OS 6853 are all from the type locality and level. IO 1743 is from base bed 6,
Bajocian, Bloody Beck, Yorkshire, England; Grid Ref.: SE 94559805.

Explanation of Plate 3, 74

Fig. 1, $ car., ext. rt. lat. (IO 1736, 712 pm long); fig. 2, $ car., ext. It. lat. (holotype, IO 1724, 860 pm long); fig. 3, J car., ext. rt. lat.
(IO 1726, 1050 pm long).

Scale A (200 pm ; X 78), fig. 1 ; scale B (250 pm ; X 67), fig. 2 ; scale C (250 pm ; X 61), fig. 3.

Stereo- Atlas of Ostracod Shells 3, 75 Glyptocythere polita (3 of 4)

Diagnosis: Large species of genus Glyptocythere with subquadrate to subtriangular carapace. Shell surface
usually smooth with shallow median sulcus marking the position of adductor muscles (occasional
wrinkles in dorsomedian area). Ventrolateral margin projects downward, sometimes forming a thin
keel, particularly in the female dimorph. Prominently displayed normal pore canals.

Remarks: The low keel as seen in the holotype (PI. 3, 74, fig. 2) is not always developed in the female and is
very rare in the male. The juvenile hinge is anti-merodont.

Distribution : A marine species. Found in the Bajocian, G. polita Zone in the lower part of the Grey Limestone
Series of Hundale Point (beds 5-9, 11, 12); Ravenscar (beds 3-9); Bloody Beck (beds 2-6), York-
shire, England (Bate, op. cit.).

Explanation of Plate 3, 76

Fig. 1, $ car., ext. vent. (IO 1743, 925 pm long); fig. 2, $ car., ext. vent. (IO 1726, 1050 pm long); fig. 3, juv. car., ext. It. lat.

(OS 6853, 655 pm long); fig. 4, car., ext. It. lat. (IO 1726, 1050 pm long); fig. 5, $ car., ext. ant. (IO 1736, 712 pm long); fig. 6,
s car., ext. ant. (IO 1727, 1125 pm long). i i

Scale A (200 pm; X45), fig. 1; scale B (250 pm; X 40), figs. 2, 4; scale C (200 pm; X74), fig. 3; scale D (200 pm; X 98), fig. 5;
scale E (200 pm; X 80), fig. 6.

Stereo-Atlas of Ostracod Shells 3, 74

Glyptocythere polita (2 of 4)

Stereo-Atlas of Ostracod Shells 3, 76

Glyptocythere polita (4 of 4)

Stereo-Atlas of Ostracod Shells 3 (16) 77-80 (1976) Glyptocythere costata (1 of 4)

595.337.14 (116.222) (427.4: 162.001.54): 551.351 + 552.54

ON GLYPTOCYTHERE COSTATA BATE

by Carol Mayes

(British Museum (Natural History ] , London )

Glyptocythere costata Bate, 1965

1965 Glyptocythere costata sp. nov. R. H. Bate, Bull. Br. Mus. nat. Hist. ( Geol .) 11 (3), 106, pi. 5, figs. 1-7.

Holotype: Brit. Mus. (Nat. Hist.) IO 1775, $ carapace.

Type locality : Base of bed 10, top of Glyptocythere polita Zone, Grey Limestone Series, Bajocian; Ravenscar,
Yorkshire, England. Grid Ref.: NZ 988012.

Figured specimens: Brit. Mus. (Nat. Hist.) nos. IO 1775 ($ car. : PI. 3, 78, figs. 1, 2), IO 1777 (9 car. : PI. 3, 80, figs. 4,
5), OS 6854 (S car. : PI. 3, 80, fig. 3), OS 6855 (juv. car. : PI. 3, 80, figs. 1, 2), OS 6856 (J car. : PI. 3,
78, fig. 3; PI. 3, 80, fig. 6). All specimens are from the type locality and level.

Explanation of Plate 3, 78

Fig. 1, 9 car., ext. It. lat. (holotype, IO 1775, 646 fzm long); fig. 2, 9 car., ext. rt. lat. (holotype, IO 1775); fig. 3, car., ext. It. lat.
(OS 6856, 731 |zm long).

Scale A (200 (zm ; X 88), figs. 1,2; scale B (200 (zm ; X 89), fig. 3.

Stereo-Atlas of Ostracod Shells 3, 79 Glyptocythere costata (3 of 4)

Diagnosis: Species of Glyptocythere with subquadrate, posteriorly tapered carapace. Shell surface ornamented
medially by irregular, branching, transverse ridges, that diverge from the dorsal margin and by two
main parallel longitudinal ridges.

Remarks: The lowermost of the longitudinal ventrolateral ridges sometimes forms a prominent keel. The
minor ventrolateral and ventral ridges occasionally bifurcate. Dorsal margin of left valve concave,
that of right valve strongly convex.

Distribution : A marine species so far found only in the Bajocian, Grey Limestone Series, of Hundale Point (bed 5) ;
Ravenscar (beds 8, 10, 12), Yorkshire, England (Bate, op. cit. ).

Explanation of Plate 3, 80

Fig. 1, juv. car., ext. It. lat. (OS 6855, 578 pun long) ; fig. 2, juv. car., ext. vent. (OS 6855) ; fig. 3, d1 car., ext. dors. (OS 6854, 680 (zm
long) ; fig. 4, 9 car., ext. dors. (IO 1777, 612 [zm long) ; fig. 5, 9 car., ext. ant. (IO 1777) ; fig. 6, car., ext. ant. (OS 6856, 731 [zm long).
Scale A (100 (zm; X 79), figs. 1, 2; scale B (100 |zm; X68), fig. 3; scale C (100 (zm; X 74), fig. 4; scale D (100 [zm; X 118), fig. 5;
scale E (100 |zm; X 105), fig. 6.

Glyptocythere costata (4 of 4)

Stereo-Atlas of Ostracod Shells 3, 78

Glyptocythere costata (2 of 4)

Stereo-Atlas of Ostracod Shells 3, 80

Stereo-Atlas of Ostracod Shells 3 (17) 81-90 (1976) Loxoconcha rhomboidea (1 of 10)

595.337.14 (119.9) (261.263: 161.010.59+261.263: 161.011.58+261.268: 162.003.50+261.2: 161.015.28 + 262.116: 161.007.43):
551.351

ON LOXOCONCHA RHOMBOIDEA (FISCHER)

by John Athersuch and John E. Whittaker

( University of Leicester, England, and British Museum [Natural History ], London, England)

Genus LOXOCONCHA Sars, 1866

1866 Loxoconcha G. O. Sars, Fork. VidenskSelsk. Krist. 1865, 61.

1866 Loxoleberis G. O. Sars, ibid., 130 ( lapsus calami).

1866 Normania G. S. Brady, Tratis. zool. Soc. Lond. 5, 382.

Type-species (subsequent designation by Brady & Norman, 1889): Cythere rhomboidea Fischer, 1855

Diagnosis: Carapace rather inflated in dorsal view, sometimes with lateral protuberances in posterior half.

Generally rhomboidal in side view with characteristic compressed posteroventral margin border.
Ornament variously developed concentrically arranged pittings. Hinge gongylodont; median ele-
ment strongly crenulate. Frontal muscle scar C-shaped. The upper of the middle two adductor
muscle scars is the largest. Fulcral point small and simple or absent.

Remarks: The majority of species of Loxoconcha examined by the present authors closely resemble the type
species with respect to shape, ornamentation, muscle scar patterns and hinge. However, L. rubri-
tincta Ruggieri possesses a muscle scar pattern and hinge structure intermediate between Loxoconcha
and Sagmatocy there (see Stereo-Atlas of Ostracod Shells, 3, 107-116, 1976).

Explanation of Plate 3, 82

Fig. 1, 5 RV, ext. lat. (neotvpe, 1975.1238, 671 am long); fig. 2, $ LV, ext. lat. (1975.1239, 659 [im long); fig. 3, juv. -1 RV, ext. lat.
(1975.1240, 488 [am long).

Scale A (200 am ; X98), figs. 1,2; scale B (200 [am; X 115), fig. 3.

Stereo- Atlas of Ostracod Shells 3, 83 Loxoconcha rhomboidea (3 of 10)

Loxoconcha rhomboidea (Fischer, 1855)

1854 Cythere flavida O. F. Muller ; W. Zenker, Arch. Naturgesch. 20, 86, pi. 5, fig. B4, ? figs. Bl-3 ( non C.flavida O. F. Muller, 1785).

1855 Cythere rhomboidea sp. nov. S. Fischer, Abh. bayer. Akad. PFz'ss. 7, 656.

? 1 865 Cythere ( Normania ) carinata sp. nov. G. S. Brady, Ann. Mag. nat. Hist., ser. 3, 16, 189, pi. 9, figs. 1-4.

1868 Loxoconcha impressa (Baird); G. S. Brady, Trans. Linn. Soc. Lond. 26, 433, pi. 25, figs. 35MO, pi. 40, fig. 4 ( non Cythere

impressa Baird, 1850).

Neotype: (here designated). Brit. Mus. (Nat. Hist.) no. 1975.1238; $ car. (subsequently split into valves) from
the A. M. Norman coll.

Lervig ( - Larvik), S Norway, approx, lat. 59‘ 05'N, long. lO'OO'E; Recent.

Brit. Mus. (Nat. Hist.) nos. 1975.1238 Neotype ($ RV: PI. 3, 82, fig. 1 ; PI. 3, 88, figs. 2, 4), 1975.1239
(9 LV: PI. 3, 82, fig. 2), 1975.1240 (.juv. -1 : PI. 3, 82, fig. 3; PI. 3, 84, fig. 8), 1975.1241 (9 car.:
PI. 3, 84, fig. 1; PI. 3, 86, fig. 3; PL 3, 88, fig. 1), 1975.1242 (9 car.: PI. 3, 84, fig. 3), 1975.1243

(A car.: PI. 3, 84, fig. 4), 1975.1244 (A RV: PI. 3, 84, fig. 6), 1975.1245 (A LV: PI. 3, 84, fig. 7),

1975.1246 ($ RV : PI. 3, 86, fig. 1 ; PI. 3, 88, figs. 3, 5), 1975.1248 (<J LV & soft parts : PI. 3, 86, fig. 4),

1975.1247 ($ RV : PI. 3, 86, fig. 2), 1976.693 (<J LV : PI. 3, 84, fig. 2), 1976.694 (<J RV : PI. 3, 84, fig. 5).
1975.1238 and 1975.1245 were taken from a slide in the Norman coll, in the Brit. Mus. (Nat.

Hist.) marked ‘Larvik’. 1975.1239, 1240, 1246-1248 coll, alive from Enteromorphaby]. E. Whittaker
during August 1969 from Tidmoor Point, W Fleet, Dorset, England (approx, lat. 50 36'N, long.
2°30'W); salinity 34-4% , water temp. 19-5°C, pH 8-3, 02 123%. 1975.1242 and 1243 coll, alive from
Enteromorpha by J. E. Whittaker during August 1968 from a rock pool at Osmington Mills, Wey-

Explanation of Plate 3, 84

Fig. 1, $ car., ext. rt. lat. (1975.1241, 585 jam long); fig. 2, A LV, ext. lat. (1976.693, 695 jam long); fig. 3, 9 car., ext. rt. lat.
(1975.1242, 615 ;am long); fig. 4, A car., ext- rt- lat- (1975.1243, 732 [am long); fig. 5, A RV, ext. lat. (1976.694, 700 [am long); fig. 6,
A RV, ext. lat. (1975.1244, 659 [am long) ; fig. 7, A LV, details of ornament (1975.1245) ; fig. 8, juv. -1 RV, details of ornament (1975. 1240).
Scale A (250 [am; X 65), figs. 1-6; scale B (25 [am; X 830), fig. 8; scale C (25 [am; X790), fig. 7.

Type locality:
Figured specimens :

■t-

Stereo-Atlas of Ostracod Shells 3, 85 Loxoconcha rhomboidea (5 of 10)

Figured specimens:
{contd.)

mouth Bay, Dorset, England (approx, lat. 50°38'N, long. 2°23'W); salinity 34-4%0, water temp.
161°C, pH 8-0, 02 141%. 1975.1241, from the shoreline of Madeira, was taken from the Brady
coll., Brit. Mus. (Nat. Hist.). 1976.693 coll, by Dr E. Robinson from coarse sand at a depth of 10m,
2km off Las Palmas during November 1974. 1975.1244 is from Gullmar Fjord, Sweden (approx,
lat. 58°15'N, long. 11°30'E) (O. Elofson coll.), and 1976.694, containing remnants of soft parts is
from St Jean, Monaco (approx, lat. 43°44'N, long. 7°25'E).

Diagnosis:

Seen dorsally, widest point of shell in both sexes in middle. In lateral view, dorsal margin of female
strongly arched; oral concavity marked in both sexes. Ornament of concentrically arranged fine to
medium sized puncta.

Remarks:

C. rhomboidea was erected by Fischer as a new species for C. flavida of Zenker, 1854, non O. F.
Muller, 1785, and makes use of Zenker’s original description and figures. Zenker’s drawing of the
carapace (op. cit., pi. 5, fig. Bl) is not good and could equally be that of a male Loxoconcha elliptica
Brady, 1868 (see Stereo-Atlas of Ostracod Shells 3, 99-106, 1976), with which L. rhomboidea was
long confused, but that of the copulatory appendage (fig. B4) is certainly of the present species
(cf. our Text-fig. 2e; PI. 3, 86, fig. 4). As Zenker’s material cannot be found (Drs H. Malz and
K. Diebel, pers. comm.) it must be presumed lost and we now designate and figure a neotype from
the same geographical region.

L. rhomboidea was also for long confused with Cy there impressa Baird, 1850, non M’Coy, 1844,
but a study of Baird’s figures {Natural History of British Entomostraca, Ray. Soc., London, 173,
pi. 21, fig. 9) shows that that species is more probably a synonym of Loxoconcha guttata (Norman,

Explanation of Plate 3, 86

Fig. 1, $ RV, dors. (1975.1246, 646 (jim long); fig. 2, 9 RV, vent. (1975.1247, 645 i^m long); fig. 3, 9 LV, int. lat. (1975.1241, 585
long); fig. 4, S LV, int. lat. showing soft parts (1975.1248, 680 ,u.m long).

Scale A (200 (xm; X94), figs. 1,2; scale B (200 jam; X 104), fig. 3; scale C (200 (am; X90), fig. 4.

Stereo-Atlas of Ostracod Shells 3, 87 Loxoconcha rhomboidea (7 of 10)

Remarks: 1865). Muller (1894, Fauna Flora Golf. Neapel. 21) recorded a species he thought to be conspecific
( contd .) with L. rhomboidea under the name L. impressa from the Bay of Naples, but from his pi. 28, fig. 1
and the description on p. 342, it is clear he was referring, at least in part, to L. affitiis (Brady, 1868)

Distribution :

(see Stereo-Atlas of Ostracod Shells 3, 91-98, 1976). For further discussion of the complicated syno-
nymy of L. rhomboidea see Sylvester-Bradley, 1946 {Ann. Mag. nat. Hist. ser. 11, 13, 195).

A common phytal species in the eulittoral and sublittoral zones of the coasts of Europe from N
Norway to Madeira and the Canary Islands, off N Africa. NW European specimens are always
finely punctate, those to the S often more coarsely so.

Mediterranean records now need careful revision. Some of the Recent specimens examined, par-
ticularly those from the W Mediterranean (e.g. Monaco and Naples, Italy), do appear to be L. rhom-
boidea. Specimens from the eastern part have often proved to be L. affnis Brady, although some
sub-Recent specimens from Cyprus (J. Athersuch coll.) may be considered as L. rhomboidea. Both
species occur at Naples, Italy. Records of L. rhomboidea from the Black Sea (e.g. Schornikov, 1969,
Definitive Fauna of the Black and Azov Seas 2, 197, pi. 24, fig. 1) probably do not represent the
present species. Specimens from the E coast of N America, attributed to L. impressa (Baird) (e.g.
Cushman, 1906, Proc. Boston Soc. nat. Hist. 32, pt. 10; Tressler & Smith, 1948, Maryland Chesa-
peake Biol. Lab. Pub. 71) are now regarded as distinct species.

Brady recorded Cythere ( Normania ) carinata , of which the type material is presumed lost, from
the Pleistocene Brickearths of the River Nar (Brady, 1865); later (Brady, 1868) he considered this
species to be conspecific with L. rhomboidea, but no specimens attributable to this species have
subsequently been found in these deposits (pers. comm. Dr E. Robinson).

Explanation of Plate 3, 88

Fig. 1, 9 LV, muse. sc. (1975.1241); figs. 2, 4, 9 LV, terminal hinge elements (neotype, 1975.1238); figs. 3, 5, 9 RV, terminal hinge
elements (1975.1246).

Scale A (25 jam; X 495), fig. 1 ; scale B (50 (am; X 396), figs. 2-5.

Stereo-Atlas of Ostracod Shells 3, 88

Loxoconcha rhomboidea (8 of 10)

Stereo-Atlas of Ostracod Shells 3, 86

Loxoconcha rhomboidea (6 of 10)

Text-fig. 1. Appendages of Loxoconcha rhomboidea. la, It. first antenna; lb, rt. second antenna; lc, 9 maxilla.

Stereo-Atlas of Ostracod Shells 3, 90

Loxoconcha rhomboidea (10 of 10)

Loxoconcha rhomboidea (9 of 10)

Text-fig. 2. Appendages of Loxoconcha rhomboidea. 2a-c, $ rt. legs 1-3 ; 2d, £ mandible; 2e, $ It. copulatory appendage.

Stereo-Atlas of Ostracod Shells 3, 89

Stereo-Atlas of Ostracod Shells 3 (18) 91-98 (1976) Loxoconcha affinis (1 of 8)

595.337.14 (119.9) (262.3 : 161.016.43 + 262.2: 161.033.34 + 262.2 : 161 .035.33) : 551.351 + 552.513

ON LOXOCONCHA AFFINIS (BRADY)

by John Athersuch
( University of Leicester, England)

Loxoconcha affinis (Brady, 1866)

1866 Normania affinis sp. nov. G. S. Brady, Trans, zool. Soc. Lond. 5, 382, pi. 61, figs. 12a-d.

1868 Loxoconcha affinis (Brady); G. S. Brady, Ann. Mag. nat. Hist. ser. 4, 2, 220.

1894 Loxoconcha impressa (Baird) ; G. W. Muller, Fauna Flora Golf. Neapel 21, pi. 28, fig. 1 ; ? pi. 27, figs. 16, 20; non pi. 27, fig. 17,
pi. 28, fig. 6.

1912 Loxoconcha bairdi nom. nov. ( pro Cythere impressa Baird, 1850, non M’Coy, 1844) G. W. Muller, Tierreich 31, 306, fig. 85.
1942 Loxoconcha adriatica sp. nov. W. Klie, Zool. Anz. 139, 67, figs. 1-5.

1975 Loxoconcha aff. L. rhomboidea (Fischer); H. Uffenorde, Gottinger Arb. Geol. Paldont. no. 13, 85, pi. 9, fig. 5.

Lectotype: (here designated). Brady coll., Hancock Museum, Newcastle-upon-Tyne; $ LV and RV. No catalogue num-
ber, but placed in a separate, labelled slide. [Paralectotype : also on separate, labelled slide in Brady coll.].

Type locality : The Levant; Recent.

Figured specimens: Hancock Museum specimens: Lectotype LV : PI. 3, 92, fig. 2), Paralectotype (§ RV: PI. 3, 96, fig. 4).

Universitat Hamburg Zoologisches Museum no. K30389 (ex-Klie coll. no. 149) (3 LV: PI. 3, 94, figs. 2, 4).
Brit. Mus. (Nat. Hist.) nos. 1975.1232 (3 RV: PI. 3, 94, fig. 1), 1975.1233 ($ LV: PI. 3, 96, fig. 1 ; PI. 3, 93,
figs. 1, 2, 4), 1975.1234 ($ RV: PI. 3, 98, figs. 3, 5), 1975.1235 ($ RV: PI. 3, 96, fig. 3), 1975.1236 (juv. -1 :

Explanation of Plate 3, 92

Fig. 1, $ RV, ext. lat. (1976.695, 598 tarn long); fig. 2, $ LV, ext. lat. (lectotype, 585 jam long); fig. 3, juv. —1 RV, ext. lat. (1975.1236,
476 (am long).

Scale A (200 jam ; X 1 10), figs. 1,2; scale B (200 jam; X 116), fig. 3.

Stereo-Atlas of Ostracod Shells 3, 93 Loxoconcha affinis (3 of 8)

Figured specimens: PI. 3, 92, fig. 3; PI. 3, 94, fig. 3), 1975.1237 {3 RV & soft parts: PI. 3, 96, fig. 2), 1976.695 (? RV: PI. 3, 92,
(contd.) fig. 1). Brady specimens are from sponge sand. Klie specimen coll, alive by K. Viets from algae at Spalato,
Yugoslavia; approx, lat. 43'30'N, long. 16°30'E, water depth 3-4m. 1975.1232-1237 and 1976.695 coll,
alive from Cyprus by J. Athersuch, autumn 1973. 1975.1232, 1976.695 associated with sea-grass Posidoma
in sand, Pyla; approx, lat. 34°57'N, long. 33°51'E, water temp. 25-5cC, depth 23m, salinity 39° 00, 02
106%, pH 81. 1975.1233-1235 from algae on rocks, Kyrenia; approx, lat. 33°19'N, long. 35 20'E, water
temp. 27°C, depth 2-3m, salinity 39%0. 1975.1236, 1237 associated with Posidonia in sand, Akrotiri Bay;
approx, lat. 34°33'N, long. 33°02'E, water temp. 25°C, depth 20m, salinity 39° 00, 02 96%.

Diagnosis: Both sexes have maximum width of carapace behind the mid -point. Dorsal margin of female gently arched.
Males more elongate. Fossae subrounded.

L. affinis differs from L. rhomboidea (Fischer, 1855) (see Stereo- Atlas of Ostracod Shells 3, 1976) in details
of the male copulatory appendages, in having a less arched female dorsal margin, and a less developed
anteroventral oral concavity. L. affinis characteristically has coarser ornament, is smaller, and its maximum
width is sited further back.

G.W. Muller claimed (1894) that large and small forms of L. impressa (Baird) occurred in the Bay of
Naples, Italy, but considered that these were onlv local varieties. It seems probable from his description and
illustrations that the smaller form was L. affinis and that the larger was L. rhomboidea. Muller later (1912)
suggested L. bairdi as a new name for L. impressa ( Baird) (primary homonym of C. impressa M’Coy, 1844).
However, his redescription and illustration (1912, 306, fig. 85) are undoubtedly of L. affinis.

Many previous Mediterranean records of L. impressa, L. bairdi and L. rhomboidea may in fact refer to
L. affinis. The following records can be confirmed: Recent from Adriatic (Klie, op. cit. ; Uffenorde, op. cit.),
Cyprus (herein), Tenedos ( — Bozcaada) and Levant (Brady, op. cit.), Bay of Naples, Italy (Muller, 1894),
Lago del Fusaro, Naples, Italy (McKenzie, 1963, Annuar. 1st. Mus. Zool. Univ. Napoli 15).

Explanation of Plate 3, 94

Fig. 1, 3 RV, ext. lat. (1975.1232, 622 (am long); fig. 2, 3 LV, ext. lat. (K30389, 671 (am long); fig. 3, juv. -1, detail of ornament
(1975.1236); fig. 4, 3 LV, detail of ornament (K30389). .

Scale A (200 ;am; X 105), figs. 1,2; scale B (25 [am; X580), fig. 3; scale C (25 (am; X400), fig. 4.

Remarks :

Distribution :

Stereo-Atlas of Ostracod Shells 3, 94

Loxoconcha affinis (4 of 8)

Explanation of Plate 3, 96

Fig. 1, $ LV, int. lat. (1975.1233, 524 [am long); fig. 2, $ RV, int. lat. showing soft parts (1975.1237, 610 |/m long); fig. 3, $ RV, vent.

(1975.1235, 537 [am long); fig. 4, 9 RV, dors, (paralectotype, 537 [am long).

Scale A (200 [am; X 124), fig. 1 ; scale B (200 [am; X 105), fig. 2; scale C (100 [am; X 120), figs. 3, 4. i ■

Stereo-Atlas of Ostracod Shells 3, 97

Stereo-Atlas of Ostracod Shells 3, 95

Loxoconcha affinis (7 of 8)

Explanation of Plate 3, 98

Fig. 1, $ LV, int. lat. muse. sc. (1975.1233); figs. 2, 4, $ LV, terminal elements of hinge (1975.1233); figs. 3, 5, $ RV, terminal
elements of hinge (1975.1234).

Scale A (25 [am; X435), fig. 1 ; scale B (50 jam; X496), figs. 2-5.

Loxoconcha affinis (5 of 8)

Text-fig. 2. Appendages of
L. affinis. 2a-c, $ rt. legs 1-3;
2d, maxilla.

Text-fig. 1. Appendages of L. affinis. la, £ It. second antenna; lb, 9 rt.
first antenna; lc, d, <$ mandible and rt. copulatory appendage.

Stereo-Atlas of Ostracod Shells 3, 96

Stereo-Atlas of Ostracod Shells 3, 98

Loxoconcha affinis (8 of 8)

Loxoconcha affinis (6 of 8)

Stereo-Atlas of Ostracod Shells 3 (19) 99-106 (1976) Loxoconcha elliptica (1 of 8)

595.337.14 (119.9) (261 .268 : 162.002.50+262.13 : 161.014.41 + 261.28: 162.002.44): 551.313.1

ON LOXOCONCHA ELLIPTICA BRADY

by John Athersuch and John E. Whittaker
( University of Leicester, England, and British Museum [Nat. Hist.], London, England )

Loxoconcha elliptica Brady, 1868

1853 Cythere viridis O. F. Muller; W. Liljeborg, De Crustaceis ex ordinibus tribus: Cladocera, Ostracoda et Copepoda, in Scania
occurrentibus, Lund, 168, pi. 18, figs. 4—6, 8-13, pi. 19, figs. 3-5 ( non C. viridis O. F. Muller, 1785).

1868 Loxoconcha elliptica sp. nov. G. S. Brady, Trans. Linn. Soc. Lond. 26, 435, pi. 27, figs. 38, 39, 45-48, pi. 40, figs. 3a, b.

1928 Cythere sp.; H. Gauthier, Recherches sur lafaune des eaux continentales de UAlgerie et de la Tunisie, Algiers, 385, text-figs.
59A-F, 60A-H.

1929 Loxoconcha gauthieri sp. nov. W. Klie, Z. wiss. Zool. 134, 292, text-figs. 23—25.

non 1941 Loxoconcha elliptica sp. nov. J. H. Bonnema, Natuurh. Maandbl., Maastricht 30, 26, pi. 6, figs. 6-11.
non 1972 Loxoconcha elliptica Brady; H. UfFenorde, Gottinger Arb. Geol. Palaont. 13, 84, pi. 9, fig. 3.

Lectotype: (here designated). Brady coll., Hancock Museum, Newcastle-upon-Tyne; $ carapace. No catalogue
number, but placed in a separate, labelled slide. Taken from a slide originally labelled Normania
elliptica (Brady), subsequently altered to N. viridis.

Type locality : Arnold’s Pool (=Vale Pond), Guernsey, Channel Islands; approx, lat. 45°30'N, long. 2°37'W.
Recent, brackish water.

Figured specimens: Hancock Mus. specimen: Lectotype ($ car. : PI. 3, 100, fig. 1). Brit. Mus. (Nat. Hist.) nos. 1975.958
(<J car. : PI. 3, 100, fig. 2), 1975.959 (juv. -1 car. : PI. 3, 100, fig. 3), 1975.960 ($ car. : PI. 3, 102, fig. 1),

Explanation of Plate 3, 100

Fig. 1, $ car., ext. rt. lat. (lectotype, 590 g.m long); fig. 2, car., ext. rt. lat. (1975.958, 650 g.m long); fig. 3, juv. —1 car., ext. rt. lat.
(1975.959, 500 (rm long).

Scale A (250 (Jtm; X 100), figs. 1-3.

Stereo- Atlas of Ostracod Shells 3, 101 Loxoconcha elliptica (3 of 8)

Figured specimens:
( contd .)

Diagnosis :
Remarks :

Distribution :

1975.961 0 car.: PI. 3, 102, fig. 2), 1975.962 (J LV: PI. 3, 102, fig. 3), 1975.963 ($ LV: PI. 3, 104,
figs. 1, 3, 5), 1975.964 ($ RV: PI. 3, 104, figs. 2, 4), 1975.965 (<J RV: PI. 3, 106, fig. 3), 1975.966
(9 car. : PI. 3, 106, fig. 1), 1975.967 (^ LV : PI. 3, 106, fig. 2). Lectotype coll, alive by A. M. Norman.
1975.958-961, 963, 964, 966, coll, alive from Fucus ceranoides in shallow', brackish water, Mother
Siller’s Channel, Christchurch Harbour, Hampshire, S England; approx, lat. 50°43'N, long.
1 °45'W, water temp. 22°C, salinity 7-4%0. 1975.965, 967 (also living) from Enteromorpha at La Teste
de Buch, S Arcachon Basin, SW France ; approx, lat. 44°39'N, long. 1°09'W. Both localities sampled
by J. E. Whittaker, August 1969 and 1970 respectively. 1975.962 (ex-slide no. 1972.3.2.8) coll, by
K. G. McKenzie from Lago del Fusaro, near Naples, W Italy; approx, lat. 4F 10'N, long. 14°04'E.
Ornament of valves subdued. Flattened posteroventral marginal border very narrow for genus. No
caudal process. Strongly dimorphic; shape of male carapace and copulatory appendages distinctive.
The best extant syntype specimens of L. elliptica were found to be those from the Guernsey locality.
In NW Europe this species, as late as 1938 (Klie, Tierwelt Dtl. 34, 201), was considered synonymous
with L. rhomboidea (Fischer) and in earlier times often confused with Hirschmannia viridis (O. F.
Muller). Both latter species have recently been rehabilitated (see Stereo-Atlas of Ostracod Shells, 3,
81-90, 1976, and 2, 149-156, 1975, respectively).

Records from the Mediterranean coast of L. elliptica are often incorrect (e.g. UfFenorde, op. cit.),
but Gauthier’s excellent figures of his Cythere sp. ( =L. gautheri Klie) prove its occurrence in N
Africa, while material from the shore of W Italy is illustrated herein. L. elliptica is invariably a
brackish water species confined to estuaries, lagoons and pools throughout NW Europe and prob-
ably the whole of the Mediterranean. It is known from the Pleistocene of Britain, but earlier occur-
rences are not knowm to us.

Explanation of Plate 3, 102

Fig. 1, $ car., ext. vent. (1975.960, 570 jj.m long); fig. 2, car., ext. dors. (1975.961, 650 gm long); fig. 3, S LV, ext. lat. (1975.962,
610 (am long).

Scale A (250 [xm; X 100), figs. 1-3.

Stereo-Atlas of Ostracod Shells 3, 102

Loxoconclia elliptica (4 of 8)

Stereo-Atlas of Ostracod Shells 3, 100

Loxoconcha elliptica (2 of 8)

Explanation of Plate 3, 104

Figs. 1, 3, 5, $ LV, int. lat. (1975.963, 550 |im long): fig. 1, post, hinge; fig. 3, ant. hinge; fig. 5, int. lat. Figs. 2, 4,
$ RV, int. lat. (1975.964, 570 (xm long): fig. 2, ant. hinge; fig. 4, post, hinge.

Scale A (50 pm; X 380), figs. 1-4; scale B (250 pm; X 100), fig. 5.

Stereo-Atlas of Ostracod Shells 3, 103
100pm

Loxoconcha elliptica (5 of 8)

Text-fig. 1. Appendages
of L. elliptica. la, $ It.
second antenna; lb, $ It.

first antenna;
lc, rt. maxilla.

Stereo-Atlas of Ostracod Shells 3, 105

Loxoconcha elliptica (7 of 8)

100^m

2a-c.e

Text-fig. 2.

Appendages
of L. elliptica.

2a-c, It. legs
1-3 ; 2d, $ It. copu-
latory appendage ; 2e, It
mandible.

Explanation of Plate 3, 106

Fig. 1, $ car., detail of ant. dors, region showing sieve-pores (1975.966, 590 pm long) ; fig. 2, ^ car., detail of ant. dors, region showing
fine ornament & sieve-pores (1975.967, 620 pm long); fig. 3, $ RV, int. lat. showing soft parts (1975.965, 630 pm long).

Scale A (25 pm; X700), fig. 1 ; scale B (10 pm; X 1100), fig. 2; scale C (250 pm; X 100), fig. 3.

Stereo-Atlas of Ostracod Shells 3, 106

Loxoconcha elliptica (6 of 8)

Stereo-Atlas of Ostracod Shells 3, 104

Loxoconcha elliptica (8 of 8)

Stereo-Atlas of Ostracod Shells 3 (20) 107-116 (1976)
595.337.14 (119.9) (262.2: 161.033.35 + 262.3 : 161.012.45) : 551.351

- 552.51

Loxoconcha rubritincta (1 of 10)

ON LOXOCONCHA RUBRITINCTA RUGGIERI

by John Athersuch
( University of Leicester, England)

1952

1964

1968

1975

1975

Loxoconcha rubritincta Ruggieri, 1964

Loxoconcha guttata (Norman); G. Ruggieri, Giorn. Geologia 2, 74, pi. 4, figs. 7-9 ( non Cythere guttata Norman, 1865).
Loxoconcha rubritincta sp. nov. G. Ruggieri, Pubbl. Staz. zool. Napoli 33, 521, figs. 8-10.

Loxoconcha rubritincta Ruggieri; M. Masoli, Mem. Mas. Trident. Sci. Nat. 17, 54, pi. 3, fig. 29, pi. 12, figs. 185-187.
Loxoconcha geometrica sp.nov. G.Bonaduce, G. Ciampo & M. Masoli, Pubbl. Staz. zool. Napoli 40, suppl. 1, 107, pi. 63, figs. 6-13.
Loxoconcha rubritincta Ruggieri; G. Bonaduce, G. Ciampo & M. Masoli, ibid. , 110, pi. 63, figs. 1-5.

Holotype: (not figured herein). Ruggieri coll. no. 1464, Institute of Geology of the University, Palermo, Italy;
S LV [fide Ruggieri, 1964).

Type locality : Venice beach, Italy; Recent.

Figured specimens: Brit. Mus. (Nat. Hist.) nos. 1976.732 ($ LV : PI. 3, 108, fig. 1), 1976.733 (^ LV ; PI. 3, 108, fig. 2),
1976.734 ($ RV; PI. 3, 108, fig. 3), 1976.735 (tf car.: PI. 3, 112, figs. 4, 7), 1976.736 (<? LV: PI. 3,

112, fig. 2; PI. 3, 110, fig. 3; PI. 3, 114, figs. 2, 4), 1976.737 (<? LV: PI. 3, 112, fig. 1; PI. 3, 110,

fig. 4), 1976.738 (<$ LV: PI. 3, 112, fig. 3), 1976.739 ($ RV: PI. 3, 112, fig. 5), 1976.740 (<J RV: PI. 3,
112, fig. 6; PI. 3, 114, figs. 1, 3, 5), 1976.741 (J car. : PI. 3, 110, fig. 2), 1976.742 (? car. : PI. 3, 110,
fig. 1). 1976.735 coll, alive by J. Athersuch during autumn 1973 off Kyrenia, Cyprus; approx, lat.

Explanation of Plate 3, 108

Fig. 1, $ LV, ext. lat. (1976.732, 561 pm long); fig. 2, $ LV, ext. lat. (1976.733, 659 um long); fig. 3, RV, detail of ornament

(1976.734, 524 pm long).

Scale A (250 pm; X 90), figs. 1,2; scale B (50 pm; X 673), fig. 3.

Stereo- Atlas of Ostracod Shells 3, 109

Loxoconcha rubritincta (3 of 10)

Figured specimens: 35°21'N, long. 33°18'E, water temp. 26°C, depth 4m, salinity 30%o ; in coarse sand. 1976.740 taken
( contd .) from beach sand coll, by Prof. P. C. Sylvester-Bradley from Dhavlos Bay, Cyprus, during Sep-
tember 1972; approx, lat. 35°25'N, long. 33°55'E. 1976.734, 738, 739, 741, 742 were associated with
sand at 0-1 lm at other localities off Cyprus. 1976.736, 737 coll, by Dr G. Bonaduce from the SE
coast of Italy. 1976.732, 733 coll, by Prof. G. Ruggieri from the type locality in beach sand ; approx,
lat. 45°24'N, long. 12°15'E. Text-figs. 4, 5 are based on 1976.735.

Diagnosis: Ornament varying from foveolae to large, deep, caperate funnel-shaped fossae. Male copulatory
appendages distinctive.

Remarks: The specimens from Italy show great variation in the degree of foveolation and in the number and
size of the fossae. The specimens from Cyprus have consistently the largest funnel pores and the
males have straighter hingelines than the Italian specimens. Both forms are here regarded as con-
specific although considered as distinct species by Bonaduce, Ciampo & Masoli (1975). Identical
soft parts have been found in the specimens from SE Italy and from Cyprus. Finely ornamented
specimens tend to possess foveolae in groups which correspond to sites occupied by larger fossae in
the more coarsely ornamented forms (see Text-figs. 1-3). Males more elongate and less tumid than
females.

L. angustata Brady, 1869, could be considered as a possible senior synonym of L. rubritincta. The
types are not known and are presumed lost, and the original illustrations and description are so poor
that I regard L. angustata as a nomen dubium.

Distribution: Recent, marine: Italy and Cyprus (herein) ; Venice, Italy (Ruggieri, 1952; Masoli, op. cit.) ; Tunisia
(author’s coll.).

Explanation of Plate 3, 1 10

Fig. 1, $ car., ext. vent. (1976.742, 549 [mi long); fig. 2, $ car., ext. dors. (1976.741, 683 |j.m long); fig. 3, $ LV, ext. dors. (1976.736,

671 [J. m long); fig. 4, LV, ext. dors. (1976.737, 683 [im long).

Scale A (250 [J.m; X90), figs. 1-4.

"j~i-

Stereo- Atlas of Ostracod Shells 3, 110

Stereo-Atlas of Ostracod Shells 3, 108

Loxoconcha rubritincta (2 of 10)

Loxoconcha rubritincta (4 of 10)

Stereo-Atlas of Ostracod Shells 3, 111 Loxoconcha rubritincta (5 of 10)

Text-fig. 1. Distribution of fossae and foveolae in L. rubritincta, post. £ LV (1976.738). See PI. 3, 112, fig. 3. Circles represent fossa
and foveolae, black dots sieve pores.

Explanation of Plate 3, 112

Fig. 1, LV, ext. lat. (1976.737, 683 (am long); fig. 2, LV, ext. lat. (1976.736, 671 pm long); fig. 3, $ LV, ext. lat. (1976.738,
671 pm long); fig. 4, $ RV, ext. lat. (1976.735, 646 pm long); fig. 5, $ RV, int. lat. (1976.739, 537 pm long); fig. 6, $ RV, int. lat.
(1976.740, 671 pm long); fig. 7, RV, sieve pore (1976.735, 646 pm long).

Scale A (125 pm; X 82), figs. 1-6; scale B (25 pm; X 940), fig. 7.

Stereo-Atlas of Ostracod Shells 3, 113 Loxoconcha rubritincta (7 of 10)

Text-figs. 2, 3. Distribution of fossae and foveolae in L. rubritincta. 2. Post. <$ LV (1976.736). See PL 3, 112, fig. 2. 3. Post. £ LV
(1976.737). See PI. 3, 112, fig. 1. Circles represent fossae and foveolae, black dots sieve pores.

Explanation of Plate 3, 1 14

Figs. 1 , 3, (J RV, terminal hinge elements (1976.740) ; figs. 2, 4, <$ LV, terminal hinge elements (1976.736) ; fig. 5, RV, int. muse. sc.
(1976.740).

Scale A (50 pm; X 530), figs. 1-5.

Loxoconcha rubritincta (8 of 10)

Stereo-Atlas of Ostracod Shells 3, 112

Stereo-Atlas of Ostracod Shells 3, 114

Loxoconcha rubritincta (6 of 10)

Text-fig. 4. Appendages of^1 L. nibritincta. 4a, first It. antenna;
4b, second It. antenna; 4c, rt. copulatory appendage.

T ' •

I i I

i : i
: : :

Stereo-Atlas of Ostracod Shells 3, 116 Loxoconcha rubritincta (10 of 10)

Stereo-Atlas of Ostracod Shells 3 (21) 117-124 (1976) Sagmatocy there napoliana (1 of 8)

595.337.14 (119.9) (262.2 : 161 .036.35 + 262.13 : 161.014.40) : 551 .35 (24.08.33)+552.513

ON SAGMATOCYTHERE NAPOLIANA (PURI)

by John Athersuch
( University of Leicester, England)

Genus SAGMATOCYTHERE gen. nov.

Type-species: Loxoconcha napoliana Puri, 1963

Derivation of name: Greek Sagma, sagmatos, a saddle + Cythere.

Diagnosis: Carapace elongate, quadrangular, sharply truncate posteriorly. Ornament strongly reticulate with
post-ocular sinus in male. Prominent pore conuli. Lower of middle two adductor muscle scars is
larger; frontal scar U-shaped. Fulcral point very prominent, surrounding deep fulcral notch. Hinge
gongylodont, median element finely crenulate. Posterior element strongly lobed and strongly curved.

Remarks: S. napoliana (Puri) retains the basic gongylodont hinge characteristic of Loxoconcha but differs in
having enlarged, lobed and curved posterior hinge elements, different muscle scar pattern (cf. diag-
noses), reticulate ornament, pore conuli, quadrangular outline and a post-ocular sinus in the male.
Sagmatocythere probably includes several other species previously considered in Loxoconcha. For
example, L. versicolor Muller and L. littoralis Muller, not examined in the present study but illus-
trated by Bonaduce, Ciampo & Masoli, 1975 ( Pubbl . Staz. zool. Napoli 40, suppl. 1), who considered
that these species together with L. napoliana formed a distinct group.

Explanation of Plate 3, 118

Fig. 1, $ RV, ext. lat. (1976.753, 524 (am long); fig. 2, $ LV, ext. lat. (1976.754, 512 am long); fig. 3, A LA, ext. lat. (1976.759,

512 (am long).

Scale A (250 jam ; X 1 1 5), figs. 1-3.

Stereo-Atlas of Ostracod Shells 3, 119 Sagmatocythere napoliana (3 of 8)

Sagmatocythere napoliana (Puri, 1963)

1894 Loxoconcha mediterranea sp. nov. G. W. Muller, Fauna Flora Golf. Neapel 21, 347, pi. 29, figs. 3, 10, pi. 26, figs. 33-42 [non
L. avellana (Brady, 1866) var. mediterranea G. Seguenza, 1885, II Naturaliste Siciliano 4, 57, pi. 2, figs. 1 1 a— d] .

1963 Loxoconcha napoliana nom. nov. H. S. Puri, Experientia 29, 373.

1964 Loxoconcha napoliana Puri; G. Ruggieri, Pubbl. Staz. zool. Napoli 33, 519, figs. 4, 4a.

1971 Loxoconcha mediterranea G. W. Muller; P. J. Barbeito-Gonzalez, Mitt. Hamburg zool. Mus. 67, 309, pi. 34, figs, la— c, 2a-c.

Lectotype: (here designated). Muller coll, ex-no. 9275; $, decalcified car. and soft parts. No catalogue number, but
placed on separate, labelled slides ; Institut fur Spezielle Zoologie und Zoologisches Museum der Humboldt-
Universitat zu Berlin.

Type locality:
Figured specimens :

Diagnosis :
Remarks :

Distribution :

Bay of Naples; Recent.

Brit. Mus. (Nat. Hist.) nos. 1976.753 (? RV: PL 3, 118, fig. 1), 1976.759 ($ LV: PI. 3, 118. fig. 2), 1976.754
(S car.: LV, PI. 3, 118, fig. 3; RV, PI. 3, 122, fig. 2), 1976.757 ($ car. : PI. 3, 120, fig. 3), 1976.755 ($ car.:
PI. 3, 120, fig. 1), 1976.756 ($ car.: PI. 3, 120, fig. 2), 1976.758 ($ car.: RV, PI. 3, 122, fig. 1, PI. 3, 124,
figs. 2, 4; LV, PI. 3, 124, figs. 1, 3, 5), 1976.760 ($ car.: RV, PI. 3, 122, fig. 3). Nos. 1976.753-760 coll,
from sand at 33m, off Klidhes Island, Cyprus (approx, lat. 35C42'N, long. 34°36'E), by Sqn. Ldr. Chrisp,
1968; none contained soft parts. Text-figs. 1, 2 based on lectotype.

Irregularly reticulate. Fossae with large soli; separated by undercut muri and apophyses. Simple, often
conjunctive pore conu'li.

L. napoliana, proposed as a replacement name for L. mediterranea Muller, 1894, non Seguenza, 1885, must
have the same type specimens as Muller’s species. Muller’s surviving syntypes have been examined ; all are
poorly preserved. Specimens described herein from Cyprus were not living at the time of collection, but
were, like Muller’s, associated with coarse sand and the sea-grass Posidonia. Females higher than males,
males with a deep dorsal concavity immediately behind the eye. Male copulatory appendages distinctive.
Recent: Bay of Naples (Muller, op. cit.), Tuscany (Ruggieri, op. cit.), Cyprus (herein). Miocene, Pliocene,
Quaternary of Italy (Ruggieri, op. cit.).

Explanation of Plate 3, 120

Fig. 1, $ car., ext. vent. (1976.755, 524 (am long); fig. 2, $ car., ext. dors. (1976.756, 500 (am long); fig. 3, S car-» ext. dors. (1976.757,
512 (am long).

Scale A (250 [am; X 115), figs. 1-3.

Stereo-Atlas of Ostracod Shells 3, 120

Sagmatocythere napoliana (4 of 8)

SgSSL*

Stereo-Atlas of Ostracod Shells 3, 121 Sagmatocythere napoliana (5 of 8)

Text-fig. 1. Appendages of lectotype of S. napoliana.

Explanation of Plate 3, 122

Fig. 1, $ RV, int. lat. (1976.758, 512 long); fig. 2, RV, int. lat. (1976.754); fig. 3, $ RV, detail of post, ornament (1976.760,
512 (j.m long).

Scale A (250 pum; X 115), figs. 1,2; scale B (50 (J.m; X 290), fig. 3.

Stereo-Atlas of Ostracod Shells 3, 123 Sagmatocythere napoliana (7 of 8)

Explanation of Plate 3, 124

Fig. 1, $ RV, int. muse. sc. (1976.758); figs. 2, 4, ^ RV, terminal hinge elements (1976.758); figs. 3, 5, $ LV, terminal hinge elements
(1976.758).

Scale A (25 |j.m ; X 635), figs. 1-5.

Stereo-Atlas of Ostracod Shells 3, 122

Sagmatocythere napoliana (6 of 8)

Stereo-Atlas of Ostracod Shells 3, 124

Sagmatocythere napoliana (8 of 8)

Stereo-Atlas of Ostracod Shells 3 (22) 125-132 (1976) Cypris subglobosa (1 of 8)

595.337.12 (119.9) (548.7: 161.079.07+548.7 : 161 .079.06) : 551.312

ON CYPRIS SUBGLOBOSA J. DE C. SOWERBY

by John W. Neale
( University of Hull, England )

Cypris subglobosa J. de C. Sowerby, 1840

1840 Cypris subglobosa sp. nov. J. de C. Sowerby in J. G. Malcolmson, Trans. Geol. Soc. Loud. ser. 2, 5, 47, fig. 3.

1886 Chlamydotheca subglobosa (Sowerby, fide Baird); G. S. Brady, J. Linn. Soc. 19, 300, 301, pi. 38, figs. 24— 27a.

1898 Cypris granulata sp. nov. E. Daday, Termes. Fiiz. 21, 73-75, figs. 36a-f.

1906 Eurycypris subglobosa Sow.; W. Vavra, Zool.Jb. 23, 420-422, pi. 24, figs. 9-13.

1912 Cypris subglobosa Sowerby; G. W. Muller, Ostracoda, Das Tierreich 31, 180.

1972 Cypris subglobosa Sowerby 1840; I. Okubo, Res. Bull. ShujitsuJ. Coll., Okayama 1, 61-72, 4 pis., 2 figs. (q.v. for full synonymy).
Type specimens: The repository is unknown.

Type locality: Sichel Hills, India; fossil.

Figured specimens : University of Hull coll. nos. HU.241.R.5 (juv. RV: PI. 3, 130, fig. 1), HU.241.R.8 ($ car.: PI. 3,
128, fig. 2), HU.241.R.9 ($ LY: PI. 3, 126, fig. 2; PI. 3, 128, fig. 3; PI. 3, 132, fig. 1), HU.241.R.12
($ RV: PI. 3, 126, fig. 1), HU.241.R.15 ($ RV: PI. 3, 128, fig. 1 ; PI. 3, 130, fig. 2; PI. 3, 132, fig. 2),
HU.241.R.3b (limbs : Text-figs. 1, 2). HU.241.R.5, 8, 9, 12, 15 all from Pond, Moratuwa, Sri Lanka ;
lat. 6°46'N, long. 79°53'E. HU.241.R.3b from estate pond in coconut plantation, Battuluoya, Sri
Lanka; lat. 7°43'N, long. 79°50'E.

Explanation of Plate 3, 1 26

Fig. 1, $ RV, ext. lat. (HU.241.R.12, 1375 [am long); fig. 2, $ LV, ext. lat. (HU.241.R.9, 1420 urn long).
Scale A (250 [am; X73), fig. 1 ; scale B (250 [am; X70), fig. 2.

Stereo-Atlas of Ostracod Shells 3, 127 Cypris subglobosa (3 of 8)

Diagnosis: V alves large, pitted, with posteroventral serrations and with straight or concave posterodorsal margin
in right valve. Fresh material is yellowish-green in colour.

Remarks: This easily recognised Cypris has strong pitted ornamentation, the living animal is yellow-green in
colour and has an adult length of about 1 -4 mm in Sri Lanka where it is generally common and occurs
in more than twenty of the localities examined. Based originally (J. de C. Sowerby, 1840) on fossil
material from India, this species was regarded as living in India (Baird, 1859) and Sri Lanka (Brady,
1886) and has since been widely reported from Japan and Indonesia in the E to Venezuela and the
U.S.A. in the W where minor variations occur. It has also been recorded in Yugoslavia and the
U.S.S.R.

The large flange and flange groove in the right valve only develops in the adult (see PI. 3, 130,
figs. 1, 2) and males have never been found.

Explanation of Plate 3, 128

Fig. 1, $ RV, int. ant. obi. (HU.241.R.15, 1425 [am long); fig. 2, 9car-> ext. dors. (HU.241.R.8, 1400 urn long); fig. 3, ^ LV, int. ant.
obi. (HU.241.R.9, 1420 [am long).

Scale A (250 [am; X 57), fig. 1 ; scale B (250 [am; X 70), fig. 2; scale C (250 [am; X45), fig. 3.

Explanation of Plate 3, 130

Fig. 1 , juv. RV, int. lat. (HU.241.R.5, 1026 (am long); fig. 2, $ RV, int. lat. (HU.241.R.15, 1425 (am long).
Scale A (250 am; X 93), fig. 1 ; scale B (250 [am; X66), fig. 2.

Stereo-Atlas of Ostracod Shells 3, 131 Cypris subglobosa (7 of 8)

Fig. 1, § LV, int. lat. (HU. 241. R. 9, 1420 (am long); fig. 2, ^ RV, int. vent. obi. (HU. 241. R. 15, 1425 [am long).
Scale A (250 ;am ; X 69), fig. 1 ; scale B (250 [am ; X 65), fig. 2.

Stereo-Atlas of Ostracod Shells 3, 130

Cypris subglobosa (6 of 8)

Stereo-Atlas of Ostracod Shells 3, 132

Cypris subglobosa (8 of 8)

Stereo-Atlas of Ostracod Shells 3 (23) 133-140 (1976) Cypris decaryi (1 of 8)

595.337.12 (119.9) (548.7: 161.080.09): 551.312

ON CYPRIS DECARYI GAUTHIER

by John W. Neale
( University of Hull, England)

Cypris decaryi Gauthier, 1933

1933 Cypris decaryi nov. sp. H. Gauthier, Bull. Soc. Zool. France 58, 209-216, 4 figs.

1934 Cypris ravenala n. sp. V. Brehm, Zool. Anz. 108, 74, figs. 1-7.

1944 Cypris decaryi Gauthier; W. Klie, Inst. Parc. Nation. Congo Beige, fasc. 12, 16, 17.

1961 Cypris decaryi Gauthier; E. Triebel, Senck. biol. 42, 56-59, pi. 6, figs. 1-8, pi. 7, figs. 9-12, pi. 8, figs. 13-18, pi. 9, figs. 19-20.

1964 Cypris decaryi Gauthier, 1933; G. Hartmann, Asiatische Ostracoden, Int. Rev. Ges. Hydrobiol. 144-145.

1971 Cypris decaryi Gauthier, 1933; K. G. McKenzie, Phil. Trans. Roy. Soc. Lond. B 260, 265.

Type specimens: The repository is unknown.

Type locality: Androy, S Madagascar.

Figured specimens : University of Hull coll. nos. HU. 243. R. la ($ LV, RV : PI. 3, 134, figs. 1, 2), HU.243.R.2a ($ LV,
RV; PI. 3, 138, figs. 1, 2; PI. 3, 140, fig. 2), HU.243.R.3a ($ LV, RV: PI. 3, 136, figs. 1, 2; PI. 3,’
140, figs. 1, 3). [Limbs (Text-figs. 1,2): Note that suffix ‘b’ in catalogue number indicates separate
slide of limbs and soft parts of same specimen as ‘a’ which is slide containing the valves.]
HU.243.R.1, 2 from Pond, Ivallundai, Jaffna, Sri Lanka; HU.243.R.3 from Pond, Thunnalai,
Jaffna, Sri Lanka. Both localities approx, lat. 9°37'N, long. 80°03'E.

Explanation of Plate 3, 134

Fig. 1, $ RV, ext. lat. (HU.243.R.la, 1680 (am long); fig. 2, $ LV, ext. lat. (HU.243.R.la, 1670 jam long).

Scale A (500 [am; X 53), figs. 1, 2.

Stereo-Atlas of Ostracod Shells 3, 135 Cypris decaryi (3 of 8)

Diagnosis: Surface finely punctate, rounded posteriorly in lateral view, without posteroventral serrations. In
dorsal view, pointed anteriorly with greatest width at about mid-length. Fresh material generally
lacking colour.

Remarks: This species is widely distributed geographically but appears to be rare. Originally described from
Androy at the southern end of Madagascar by Gauthier, Hartmann (1964) confirmed its presence
at Itampolo on that island. Klie (1944) found it in the Belgian Congo (Zaire), and in S America
Brehm (1934) found it in Dutch Guiana (Surinam) and Triebel (1961) in Cura9ao (Dutch W Indies).
In Sri Lanka it is only known from two localities in the Jaffna Peninsula at the northern end of the
island. There is some variation in the pilosity of the sixth limb within the Sri Lanka material.
Some agrees well with Gauthier’s original figure but compare this with the figure given here of
HU.243.R.2b. Males are unknown. Associated species include Cypris subglobosa J. de C. Sowerby
and Centrocypris viridis Neale. C. decaryi appears able to tolerate a considerable salinity variation for
from Aldabra, Seychelles, McKenzie (1971) records it in ten samples from pools and lakes whose
salinity ranged from l%o_8'9%0-

Explanation of Plate 3, 136

Fig. 1, $ RV, ext. ant. dors. (HU. 243. R. 3a) ; fig. 2, $ RV, ext. dors. (HU.243.R.3a, 1740 jam long); fig. 3, $ LV, ext. dors. (HU.243.R.3a,
1730 jam long).

Scale A (100 jam; X 250), fig. 1 ; scale B (500 (am; X47), figs. 2, 3.

-7 -

Stereo-Atlas of Ostracod Shells 3, 134

Cypris decaryi (2 of 8)

Stereo-Atlas of Ostracod Shells 3, 136

Cypris decaryi (4 of 8)

+■

Explanation of Plate 3, 138

Fig. 1, $ LV, int. lat. (HU.243.R.2a, 1710 jam long); fig. 2, $ RV, int. lat. (HU.243.R.2a, 1720 pm long).
Scale A (500 pm; X 52), figs. 1, 2.

Stereo-Atlas of Ostracod Shells 3, 139 Cypris decaryi (7 of 8)

Explanation of Plate 3, 140

Fig. 1, $ LV, ext. post. dors. (HU.243.R.3a) ; fig. 2, $ LV, int. ant. obi. (HU.243.R.2a) ; fig. 3, $ LV, ext. ant. dors. (HU.243.R.3a).
Scale A (20 pm; X850), figs. 1, 3; scale B (250 pm; X52), fig. 2.

Stereo-Atlas of Ostracod Shells 3, 138

Cypris decaryi (6 of 8)

Cypris decaryi (8 of 8)

Stereo- Atlas of Ostracod Shells 3, 140

Stereo-Atlas of Ostracod Shells 3 (24) 141-144 (1976)
595.337.3 (118.213) (560: 161 .036.36) : 551.351 + 552.513

Cytherella obolus (1 of 4)

ON CYTHERELLA ( C Y THERELLOIDEA ) OBOLUS DORUK sp. nov.

by Neriman Doruk
( University of Ege, Izmir, Turkey)

Cytherella ( Cytherelloidea ) obolus sp. nov.

Holotype : Brit. Mus. (Nat. Hist.) IO 5761, RV.

Type locality: A road section between Babatorun and Com, 1 km SW of Babatorun, Antakya region of Turkey;

approx, lat. 36°04'N, long. 36°15'E. Uppermost Miocene; yellow sandstone with molluscan shell
fragments and foraminifera. Presumed littoral.

Derivation of name: From the Greek, ‘coin’, referring to the fancied resemblance of the surface ornament to groups of
coins.

Figured specimens: Brit. Mus. (Nat. Hist.) IO 5761 (RV : PI. 3, 142, fig. 1 ; PI. 3, 144, fig. 3), IO 5762 (LV : PI. 3, 142,
fig. 2; PI. 3, 144, figs. 1, 2). Both specimens are from the base of the section at the type locality.

Explanation of Plate 3, 142

Fig. 1, RV ext. lat. (holotype, IO 5761, 740 g.m long); fig. 2, LV ext. lat. (IO 5762, 715 [xm long).
Scale A (250 jxm ; X 1 1 3), fig. 1 ; scale B (250 [xm ; X 1 1 7), fig. 2.

-H-

Stereo-Atlas of Ostracod Shells 3, 143

Cytherella obolus (3 of 4)

Diagnosis: Elongate with three groups of pits, the largest towards the posterior, the smallest towards anterior.
Dorsal margin marked by angular change of direction in posterior third.

Remarks.: This species differs from C.fscheri Terquem and C. vesiculosa Chapman in outline and ornament.

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

Explanation of Plate 3, 144

Fig. 1, LV int. lat., pit [representing presumed mandibular fulcrum](IO 5762); fig. 2, LV int. lat. (IO 5762); fig. 3, RV int. lat.

(holotype, IO 5761).

Scale A (50 |xm; X 651), fig. 1 ; scale B (250 [xm; X 93), figs. 2, 3.

: : :
i i i

: i

"j"j-

Stereo- Atlas of Ostracod Shells 3, 144

•■j-j-

Stereo-Atlas of Ostracod Shells 3, 142

Cytherella obolns (2 of 4)

Cytherella obolus (4 of 4)

A Stereo-Atlas of Ostracod Shells

edited by R. H. Bate, J. W. Neale, David J. Siveter and

P. C. Sylvester-Bradley

Volume 3, 1976

Part 1 (pp. 1 72); 27th August, 1976
Part 2 (pp. 73—146); 22nd December, 1976

Printed and published by The Broadwater Press Ltd,
Welwyn Garden City, Hertfordshire, England

Stereo-Atlas of Ostracod Shells 3, ii Contents

Contents

1 On Renibeyrichia mulciber Siveter gen. et sp. nov. ; by David J. Siveter 1

2 On Philomedes donzei Neale sp. nov. ; by J. W. Neale 9

3 On Centrocypris viridis Neale sp. nov.; by J. W. Neale 13

4 On Oncocypris pustulosa Gurney; by J. W. Neale 21

5 On Stenocypris fernandoi Neale sp. nov.; by J. W. Neale 29

6 On Ilyocypris taprobanensis Neale sp. nov.; by J. W. Neale 37

7 On Radimella dictyon Pokorny; by R. H. Benson 41

8 On Radimella darwini Pokorny; by R. H. Benson 45

9 On Radimella confragosa (Edwards); by R. H. Benson 49

10 On Radimella? aurita (Skogsberg); by R. H. Benson 53

11 On Radimella? floridana (Benson & Coleman); by R. H. Benson 57

12 On Cytherella {Cytherelloidea) petrosa Doruk sp. nov. ; by N. Doruk 61

13 On Cytherella ( Cytherelloidea ) ochthodes Doruk sp. nov.; by N. Doruk 65

14 On Cytherella ( Cytherelloidea ) chosta Doruk sp. nov.; by N. Doruk 69

15 On Glyptocythere polita Bate; by C. Mayes 73

16 On Glyptocythere costata Bate; by C. Mayes

17 On Loxoconcha rhomboidea (Fischer); by J. Athersuch & J. E. Whittaker 81

18 On Loxoconcha affi nis (Brady) ; by J. Athersuch 91

19 On Loxoconcha elliptica Brady; by J. Athersuch & J. E. Whittaker 99

20 On Loxoconcha rubritincta Ruggieri; by J. Athersuch 107

21 On Sagmatocythere napoliana (Puri); by J. Athersuch 117

22 On Cypris subglobosa Sowerby; by J. W. Neale 125

23 On Cypris decaryi Gauthier; by J. W. Neale 133

24 On Cytherella ( Cytherelloidea ) obolus Doruk sp. nov.; by N. Doruk 141

25 Index for Volume 3, 1976 145

Stereo- Atlas of Ostracod Shells— Vol. 3, Part 2

CONTENTS

3(15) 73-76 On Glyptocythere polita Bate; by C. Mayes (£0'70)

3(16) 77-80 On Glyptocythere costata Bate; by C. Mayes (?£0'70)

3(17) 81-90 On Loxoconcha rhomboidea (Fischer); by J. Athersuch & J. E. Whittaker (^ 1 -70)

3(18) 91-98 On Loxoconcha affinis (Brady); by J. Athersuch (j£1‘40)

3(19) 99-106 On Loxoconcha elliptica Brady; by J. Athersuch & J. E. Whittaker 1 -40)

3(20)107-116 On Loxoconcha rubritincta Ruggieri; by J. Athersuch 1 -70)

3(21)117-124 On Sagmatocy there napoliana (Puri); by J. Athersuch 1 -40)

3(22)125-132 On Cypris subglobosa J. de C. Sowerby; by J. W. Neale 1 -40)

3(23)133-140 On Cypris decaryi Gauthier; by J. W. Neale (£1-40)

3(24)141-144 On Cytherella (Cytherelloidea) obolus Doruk sp. nov. ; by N. Doruk (£0-70)

3(25)145-146 Index for Volume 3, 1976 (£0-50)

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