obtained in t/te Indian Seas. 263 



spiues, tubercles, nor granules, but are all smooth like the 

 last segment of that of the female. The vasa efferentia 

 perforate the coxopodites of the last pair of legs, the openings 

 being of fair size. 



Tiie male has been figured for "^Illustrations of the 

 Zoology of R.I. M.S. ' Investigator."' 



Fam. Corystidaa. 

 GoMEZA, Gray. 



Gomeza distincta, dc Haau, var. 



Cori/stes (Oeidea) distincta, de Ilaan, Faun. Jap., Crust. 1850, p. 4o, 



pi. xiii. fig. 2. 

 Gomeza, Gray, Zool. Misc. p. 39. 



The only difference between this variety and the type 

 described by de Haan is that the spine of the infraorbital 

 margin of tliis one is much shorter than (in fact reaches only 

 about a third of the way along) tlie supraorbital spine. 



It should also be noted that of the ten marginal spines on 

 either side of the carapace the four anterior ones, although 

 decidedly larger and with broader bases than the following 

 spines, are not by any means so much larger in comparison 

 with these latter as the figure given by de Haan represents 

 them. In this case it requires more than a superficial 

 examination or glance to make out that the four anterior 

 spines are larger; in de Haan's figure these four are enor- 

 mous compared with the following spines. 



Only one specimen (a male), 8 mm. long and 5*5 mm. 

 broad, was caught, and unfortunately its chelipeds and legs 

 are wanting. It was trawled at Sta. 292, Persian Gulf, 

 53 fathoms. 



This genus is new to the Indian fauna. 



C ATO M F. T O P A. 



Fam. Gonoplacidse. 



Ceratoplax, Stimpson. 



Ceratoplaoc granulosa, sp. n. 



Ijciiglh of carap.ace is three quarters its greatest breadth. 

 Front is a little less than one third its gj'eatest breadth, 

 deflexed, decidedly arched, and deeply notehecl. 



Not only is the palm on its outer surface covered with 

 very prominent vesiculous granules, but the surface and sides 

 of the carapace as well, except a transversely oval patch 



