1895.] A. Alcock — Carcinological Fauna of India. 283 



dentated, and all the angles produced to form curved spines ; in addi- 

 tion there is a second spine in front of the spine of either antero-lateral 

 angle, and the part of the posterior border that is co-extensive with the 

 abdomen is demarcated on either side by a strong spine. The rostrum ends 

 in a sharp point. The triangular depression of the carapace is very 

 deep, and the lines which bound it are granular ; there is an irregular 

 patch of granules on either branchial region, and there is a line of 

 granules passing forwards from the apex of the triangular depression 

 to the base of the rostrum on either side. 



The chelipeds are much as in G. fornicata, with the exception that 

 the carpus is semi-globular, and that the inner and outer margins both 

 of the hand and arm are armed with sharp laciniate spines. The 

 ambulatory legs have the merus simply carinate above, spiuate-carinate 

 below, the carpus and propodite carinate, and the dactyl us strongly 

 carinate on both edges so as to form a swimming blade. 



Orissa coast, 20-25 fathoms. Malabar coast, 28 fathoms. 



In a large male from the Malabar coast, the carapace is much 

 more granular ; and the chelipeds have the spinature much more acute 

 and laciniate, and their surfaces — especially the under surface — gra- 

 nular instead of nearly smooth. 



Cryptopodia angulata, var. cippifer, nov. 



In this variety the only differences are : ( 1 ) that the semi-globular 

 carpus has a few granules on its upper surface ; and (2) that the tri- 

 angular hollow in the middle of the carapace is rather deeper, and has 

 certain large erect definitely-placed spines on the ridges that bound the 

 hollow, namely, — two close together side by side in the middle line, in 

 front ; one at either branchial angle ; and one in the middle line 

 posteriorly, on the summit of the cardiac region. 



These spines are present in six specimens of both sexes, but are 

 most pronounced in the male. 



Loc. Karachi. 



The largest specimen, female, has an extreme breadth of carapace 

 of 45 millim. 



Heterocrtpta, Stimpson. 



Heterocrypta, Stimpson, Ann. Lye. Nat. Hist., New York, Vol. X. 1874, p. 102. 

 Heterocrypta, A. Milne-Edwards, Miss. Sci. Mex., Crust., I. p. 166. 

 Heterocrypta, Miers, J. L. S., Zool., Vol. XIV. 1879, p. 669 ; and ' Challenger ' 

 Brachyura, p. 102. 



J. ii. 36 



