Indian Deep-sea Crustacea. 291 



with hair on its inner margin ; the second pair of abdominal 

 appendages bear on the inner terminal branch a single long- 

 blunt process or stylamblis, and not a pair of processes. 



One specimen, measuring 42 millim. from tip of rostrum 

 to end of telson, was obtained at Station 230, 824 fathoms. 



There are very good grounds for believing that the 

 specimen came from a considerable depth. 



Since writing the above, one of us has trawled a second 

 slightly larger specimen off Colombo in 480-428 fathoms. 

 The colours in life were : — carapace pale brown ; abdomen 

 dirty white; swimmeret slightly tinged with pink; first and 

 second antenna?, fingers of great cheliped, and second, third, 

 and fourth pairs of thoracic legs pale pink. 



Family Stenopid.se. 



? RlCHARDINA, A. M.-Edw. 

 Richardina, A. Milne-Edwards, Recueil de Figures de Crustacea. 



A little Crustacean, which was found inhabiting a Hexac- 

 tinellid sponge dredged at 498 fathoms in the Andaman Sea, 

 closely resembles, and may even perhaps be identical with, 

 the Richardina spinicincta figured by M. A. Milne-Edwards 

 on pi. viii. of the work above cited. 



It is as closely as possible related to Stenopus and Steno- 

 pusculus, from which it seems to differ chiefly in the stouter 

 and more compact body, in the shorter and less lax ap- 

 pendages, in the reduction of the spinature of the body, and 

 in the complete absence of pigment from the eye. 



? Richardina spongicola, sp. n. 



The cephalothorax, which is of thinner texture than the 

 other parts, is short, broad, and tumid ; the prominent poste- 

 rior edge of the cervical groove is armed with a row of pro- 

 cumbent spines, and a second concentric but shorter row of 

 spines surrounds the base of the rostrum ; otherwise the 

 carapace is smooth. 



The rostrum, which is nearly a third the length of the rest 

 of the carapace, has the dorsal edge serrated throughout and 

 the ventral edge serrated at the tip only. 



The eyes, which are on short stoutish stalks, are quite 

 without pigment and have some spinules round their base 

 dorsally. 



The antennal scale is falciform ; its outer edge ends in a 

 spine, its inner convex edge is strongly ciliated. 



The external maxillipeds are stout, a little longer than the 



22* 



