Indian Deep-sea Crustacea. 7 



Lateral borders of dorsum of carapace well defined, spinu- 

 late ; the ridge on the side-wall of the carapace that defines 

 the branchial regions anteriorly is also spinulate. A row of 

 spines on the hepatic region, the largest of which is on the 

 lateral border of the carapace and has a spine dorsad of it. 



Gastric region obscurely subdivided ; each lateral sub- 

 region is armed with five or six large spines, while on the 

 median region there is a central spine, sometimes followed by 

 a row of spinules. Subhepatic and suborbital region with 

 numerous large spines, one of which is " antennal." 



Eyes well pigmented. Antennary flagella more than twice 

 the length of the carapace. 



Rows of spinules on the exposed surface of the ischium, 

 merus, and exognath of the external maxillipeds, and a row 

 on the basal joint of the antennules. 



Chelipeds slender, reaching not far beyond the end of the 

 carpus of the first pair of legs ; the arm and wrist not stouter 

 than the meropodites of the first three pair of legs ; spinate 

 and spinulate as in the preceding species ; fingers as long as 

 the hand. 



The second and third pair of legs, which are slightly 

 longer than the first and three times as long as the fourth, 

 are four times the length of the carapace. In the first three 

 pair of legs the merus is compressed and has its anterior 

 border spinate and its posterior borders spinulate ; the poste- 

 rior border of the propodite carries a few distant articulating 

 spinelets, and the dactylus (which is about two thirds the 

 length of the preceding joint) has a close comb of articulating 

 spines along its posterior border. 



The fourth (dorsal) pair, which are extremely slender, 

 have the posterior border of the merus strongly spinate ; the 

 propodite is several times larger than the minute dactylus. 



The terminal joint of the male abdomen ends acutely. 



Hairs and bristles are sparsely present, just as in the 

 preceding species. 



The carapace of a large egg-laden female is 3S millim. 

 long and 30 millim. broad. 



Eleven specimens, representing adults and young of both 

 sexes, were lately dredged off the coast of Travancore at 

 430 fathoms. 



Family Dromidae. 



Arachnodromia Baffini, gen. (?) et sp. n. 



Branchise 20 on either side, as in Homohdromia. 

 Carapace elongate-oblong, but somewhat broader behind 



