246 A. Alcock — Carcinological Fauna of India. [No. 2, 



on either pterygostomian region, bounding the buccal cavern ; and 

 almost always in females and young males, and often but by no means 

 always in adult males, the hepatic regions and the outer and post- 

 erior parts of the epibranchial regions are distinctly granular to the 

 naked eye. 



The exposed parts of the thoracic sterna are more or less covered 

 ■with granules, and there are granules on the base of the abdomen. 

 But the greater part of the abdomen, in contrast with the sternum, is 

 polished. 



The edges of the maxillipeds are hairy in the same manner as, but 

 much more coarsely than, those of P. globosa Fabr., and the surface 

 also is in large part covered with hair : the foliaceous exopodite has 

 an elegantly oval shape, owing to the fact that its inner edge is curved 

 and enters the common curve of the outer and anterior edges without 

 any abrupt transition. 



The chelipeds in the adult male are a little more than twice the 

 length, in the female only about J J times the length, of the carapace. 

 The arms bear numerous sharpish granules (speaking of those visible 

 to the unaided eye alone) on the basal third (male) or basal half 

 (female) of the upper surface, all along both the inner and outer borders 

 of the upper surface, and on the basal third and inner border of the 

 lower surface. The wrist has a row of granules along the upper border 

 of its upper surface, and commonly also along the under border of the 

 same surface ; and the inner surface of the hand is defined above by a 

 row of prominent granules, arid below by several lines of smaller 

 granules — all continued on to the base of the immobile finger, and all 

 •being very much less distinct in the female than in the male. 

 The fingers are fluted, with the outer borders granular at base. 

 The hand in the female is hardly longer, and in the male is only 

 about one-fifth longer, than broad, and is considerably inflated. The 

 fingers differ considerably according to sex, but both sexes agree in 

 having the dactylus very markedly longer than the outer border 

 of the hand, in the male they are bent inwards at an angle of about 

 145° with the hand, and the edge of the basal half of the dactylus 

 is a good deal hollowed to make room for a strong dentiform tubercle 

 on the opposed edge of the immobile finger ; and it is only beyond this 

 tuber-cle and its corresponding hollow that the fingers are denticulate : 

 in the female the fingers are not bent inwa,rds strongly, and their 

 opposed edges are unbroken, and are denticulate in the greater part of 

 their extent. 



The true legs resemble those of P. globosa, except that (1) the 

 under surface of the meropodites is granular — a line of granules on 



