1896.] A. Alcock — Carclnohgical Fauna of Tndia. 247 



the first pair, in the male only, being much enlarged, and (2) that the 

 dactyli are distinctly palraulate. 



The abdomen of the male consists of a sino;-le linear basal piece 

 and a triangular apical piece, and, between the two, a long triangular 

 plate which is divided in its distal fourth by a deep transverse groove, 

 the piece so cut off bearing a median denticle in its distal half. 



Colours in spirit : light yellowish- pinkish-brown to coppery, with 

 a bluish tinge over a large part of the dorsum of the carapace. 



The diameter of the carapace of the adult male is 29 to 30 millim., 

 that of the adult female 22 to 24 millim. 



In the Indian Museum collection there are 160 specimens collected 

 all along the East coast, from the mouth of the Hooghly to Point 

 Calimere, and on the coasts of Travancore, the Andamans, and the 

 Persian Gulf. 



74. Philyra corallicola, n. sp. Plate VII. fig. 1. 



Carapace perfectly circular, convex : the hepatic regions form a 

 pair of distinct dorsal swellings, and the branchial regions are separated 

 from the median regions by deepish grooves : the summits of the hepatic 

 regions, the posterior part of the gastric region, and the convexities of 

 all the other regions are closely covered with vesiculous granules like 

 those of P. verrucosa^ but the grooves and hollows of the carapace are 

 quite smooth. The front is divided longitudinally, from edge to base, 

 into two tumid lobes by a deepish groove : its edge is straight and the 

 tips of the mouth-parts can only just be seen beyond it in a dorsal view. 

 The entire margin of the carapace is finely evenly and sharply crenulate. 

 The sternum and convexities of the pterygostomian regions are finely 

 granular, as are also the outer and distal parts of the external maxil- 

 lipeds. 



The external raaxillipeds are shaped as in P. glohulosa, Edw. 



The chelipeds in the male are about IJ times the length of the 

 carapace : the arm is closely covered, everywhere except on a dis- 

 tal patch of the inner surface, with vesiculous granules, which are 

 largest on the upper surface : the wrist and hand are finely granular ; 

 there is a raised row of granules on the outer edge of the wrist, 

 which becomes a granular crest on the outer edge of the hand ; 

 and there are two raised rows of granules along the inner surface of the 

 hand : the fingers are about as long as the hand. The abdomen of the 

 male consists of 3 pieces, the broad base of the long triangular second 

 piece being granular : at the distal end of the second piece is a stout 

 denticle. 



