310 DR. G- S. BRADY ON ETSTTOMOSTBACA 



Ctthebe eectanqulaeis, G. S. Brady. (Plate XL. figs. 7-9.) 



Cythere rectangularis, Brady, Les Fonds de la Mer, t. i. p. 153, pi. 18. 

 figs. 13, 14. (Not rectangularis {Audei) of 'Challenger' Report.) 



Shell oblong, much compressed : seen from the side it is irre- 

 gularly angular and somewhat ear-shaped, much higher in front 

 than behind, length equal to about twice the height ; anterior 

 extremity wide and obliquely rounded, posterior narrow, obliquely 

 truncated and deeply emarginate ; dorsal margin arched, evenly 

 curved iu front, sloping steeply backwards, and deeply hollowed 

 in front of the posterior angle, which is very prominent and 

 almost rectangular ; ventral margin deeply sinuated : seen from 

 above, the outline is extremely irregular, about twice as long as 

 broad, the extremities much produced, attenuated, and sharply 

 pointed, lateral margins deeply indented at three points, the 

 posterior indentation rectangular. Surface of the shell irregular ; 

 a strong rounded rib running parallel to and just inside the 

 margins, but most conspicuous at the posterior and ventral edges. 

 Length -^ of an inch ("5 millim.). 



This is the most abundant species in the Calpentyn gathering. 

 The figure of it given in ' Les Ponds ' shows very fairly the 

 general character of the shell. The type, however, as in the case 

 of C. Stimpsoni, is no longer accessible to me, and I am glad by 

 means of this good series of specimens to be able to place the 

 species on a more secure foundation. The synonym rectangularis, 

 given iu the ' Challenger ' Eeport under G. Audei, must be with- 

 drawn. 



Cythere Hodgii, G. S. Brady. 



Cythere Hodgii, Brady, Trans. Zool. Soc. vol. v. (1865) p. 373, pi. 59. 

 figs. 3 a,b ; Report on the Ostracoda of the 'Challenger ' Expedition, 

 p. 94, pi. XXV. figs. 1 a-d. 



A single specimen, very closely resembling the type described 

 in the ' Zoological Transactions,' occurred in the Calpentyn 

 dredging. It is, however, very different from the specimens so 

 named in the ' Challenger ' Report, which, if they belong to the 

 same species, must be very much older shells. It is probable 

 that they should receive a fresh name ; but a larger series of the 

 Ceylon form, in different stages of growth, is requisite to settle 

 the question. 



Cythere iniqua, G. S. Brady. (Plate XXXIX. figs. 31-33.) 



Cy therura bataviana, Brady, Les Fonds de la Mer, t. i. p. 65, pi. 8 . figs. 7-9. 



Cythere iniqua, id. ibid. p. 64, pi. 8. figs. 3-6. 



