1899.] A. Alcock — Carcmological Fauna of India. 161 



of Homola, the lateral border is well-defined throughout, is carinated, 

 is co-extensive with the length of the carapace, and ends in a largo 

 triangular hepatic spine the tip of which is on a level with the tips of 

 the spines of the anterior border : these are four in number, one on 

 either side of the rostrum and one at either outer orbital angle. 



There is an antennal spine and spinule, there are some definitely- 

 placed nodular swellings on the well defined gastric region, and the 

 surface of the denuded carapace is granular, but there are no spines 

 other than those mentioned. 



The swollen terminal joint of the eyestalk is rather longer than 

 the slender basal joint : eyes of good size, well pigmented, hemispheric- 

 al, retractile into a very decided hollow in the front wall of the 

 hepatic region. 



The 2nd joint of the antenna-peduncle is not produced or acute at 

 the antero-external angle ; the antennal flagellum is much longer than 

 the carapace. 



Chelipeds (in the adult female and young male) short, just 

 reaching beyond the end of the carpus of the first pair of legs : the arm 

 is slenderer than the corresponding joint of the first three pair of legs : 

 the fingers are longer than the hands : none of the joints are spinate. 



The second and third legs, which are longer than the first by their 

 dactylus, and longer than the fourth by their merus and dactylus, are 

 3 times the length of the carapace. In the first three pair of legs the 

 anterior border of the meropodite is armed with large spines, but the 

 other joints are unarmed : the dactylus is slender, curved, and of great 

 length, being hardly shorter than the preceding joint. 



In the subcheliform, dorsal, fourth pair the anterior border of the 

 merus ends in a spine and the posterior border of the merus is spiny 

 throughout, the propus is much dilated and toothed at its basal angle 

 posteriorly, so as to be Z-shaped and has one or two spines on the un- 

 dilated portion of its posterior border, and the dactjlus is short and is 

 toothed along the posterior border. 



The abdomen of the male consists of seven segments. 



The carapace of an adult female is 45 millim. long and 43*5 millim. 

 broad. 



The colours in life vary from red to bluish-pink. 



In the Indian Museum are a large female and three young females from 

 ofi^ the Andamans, 480-500 fathoms, 498 fathoms and 561 fathoms ; a young 

 male, a large adult female and four young females from off the Travan- 

 core coast, 406 and 430 fathoms ; a large female with eggs from off the 

 Laccadives, 360 fathoms ; and a young female from off Colombo, 597 

 fathoms. 



