310 A. Alcock — Carcinological Fauna of India. [No. 3, 



The chelipeds in the adulfc male are a little more, in the adult 

 female a little less, than twice the length of the carapace, bnt are slightly 

 shorter than the legs : they ate smooth and polished, as also are the legs. 

 The arm 1k\s a strong upstanding claw-like tooth near the middle of its 

 upper border, one or two spinules near the far end of the outer border, 

 and a spinule near the far end of the inner border : the wrist has both 

 the inner and the outer angles spiniform. 



The third pair of legs, which are slightly the longest of the four, 

 are rather more than two-and-a-half times the length of the carapace. 

 Iu all, the anterior edge of the meropodites is armed with spines and 

 the same edge of the carpopodites with spinules — these being least 

 numerous and least distinct in the case of the first pair. 



Colours in glycerine : chelipeds and legs rather dusky red ; carapace 

 dusky red behind the transverse groove — which forms a very sharply- 

 defined red band— livid red, or almost violet, in front of it ; eyestalks 

 almost purple, eyes purplish-black. -Eggs in life magenta. 



The carapace of the largest male is 15 millim. long and 20 millim. 

 broad. 



Only known, so far, from the Andaman Sea : 2 males and a female 

 from 173 fms., 2 males and a female (Types of the species and genus) 

 from 183-220 fms , 7 females (3 with eggs) from 185 fins., a male and 

 4 females from 370-419 fms. 



12. Psopheticus insignis, n. sp. 



Carapace subquadrilateral, the antero-lateral borders being slightly 

 arched, about three-fourths as long as broad, smooth, crossed trans- 

 versely by two very low and indistinct ridges — one (convex forwards) 

 between the lateral epibranchial spines, the other at the level of the 

 post-cardiac region. The extent of the fronto-orbital border is about 

 three-fourths the greatest breadth of the carapace. 



There is a bluntish tooth at the outer orbital angle, and an obliquely 

 prominent spine at the junction of the antero-lateral and postero-lateral 

 borders, the edge of the carapace between the two being granular. 



Eye small, subglobular, its diameter being hardly a tenth the 

 greatest breadth of the carapace. 



Chelipeds more than 2\ times as long as the carapace and decidedly 

 longer than the legs : they are unarmed except for a small tooth or 

 spinule at the outer angle of the wrist. 



The meropodites of the legs have the anterior border sharply 

 granular, and in the case of the last three pair of legs there is a 

 spine near the far end of this border. The longest pair of legs are 

 hardly 2J times as long as the carapace. 



