OSTRACODA. 373 



anterior extremity obliquely rounded, posterior produced in the middle into an 

 obtusely angular beak ; dorsal margin boldly arched, highest in the middle and 

 sloping steeply towards the extremities, slightly sinuated at the anterior and posterior 

 ends, ventral margin deeply sinuated in the middle ; seen from above compressed, 

 ovate, widest in front of the middle and nearly three times longer than wide, 

 extremities obtuse, subtruncate ; colour almost black, with one or two lighter bands ; 

 surface of the valves covered with closely set, short, stiff setae ; posterior end of the 

 ventral margin finely serrate ; right valve smaller than the left ; size, 074 millim. 

 A few specimens in general washings from invertebrates from Gulf of Manaar. 



Bairdia robusta, n. sp. Plate I., figs. 13 and 14. 



Shell seen from the side subtriangular, height equal to fully two-thirds of the 

 length ; anterior extremity obliquely rounded, posterior produced in the middle into 

 an obtusely angular beak ; dorsal margin greatly arched, highest slightly in front of 

 the middle, ventral nearly straight ; seen from above broadly ovate, length fully 

 one and a half times the width, extremities subacute, posterior more so than the 

 anterior ; shell white, polished, closely beset with black seise ; anterior and posterior 

 extremities with a dense fringe of setae ; size, 0'87 millim. 



In general washings from invertebrates from Gulf of Manaar. This species 

 resembles Bairdia villosa, BEADY, but is much more tumid and obtuse. 



Anchistrocheles bradyi, n. sp. Plate I., figs. 34 and 35. 



Shell seen from the side reniform, height slightly less than half the length ; 

 anterior extremity wide, obliquely subtruncate, posterior broadly rounded, slightly 

 produced in the middle ; dorsal margin gently and evenly curved, highest behind the 

 middle, ventral sinuated in front of the middle ; seen from above the outline is 

 elongated, with parallel sides, nearly four times longer than wide ; both extremities 

 acute, anterior more so than the posterior ; shell smooth, thin and fragile ; size, 

 0'9 millim. 



In dredged material from 6 fathoms to 10 fathoms, Karativo Paar. 



The species resembles Anchistrocheles fumata, BRADY, in general appearance, but 

 is easily recognised by the more acute extremities, as seen from the dorsal aspect. I 

 have great pleasure in naming it after Professor BRADY, to whom we remain indebted 

 for much help both in this group and in the Copepoda. 



Pseudocythere minuta, n. sp. Plate I., figs. 28 and 29. 



Shell seen from the side oblong, subquaclrate, slightly higher in front than behind, 

 height slightly less than half the length ; anterior extremity rounded, with one or 

 two tooth-like projections near the middle ; posterior oblique, subtruncate, much 

 compressed, produced at the upper angle into a broad, blunt beak, lower angle also 

 produced, but the beak is much smaller ; dorsal margin almost flat, highest near the 



