208 A. Alcock — Carcinological Fauna of India. [No. 1, 



Basal antennal joint short, not reaching the front ; the flagellum, 

 which is about equal in length to the major diameter of the orbit, 

 lodged in the rather broad orbital hiatus. 



The ridges of the endostome, defining the expiratory canals, are 

 well marked, but the anterior border of the merus of the external 

 maxillipeds is not notched. The buccal cavern is broader anteriorly 

 than posteriorly. 



Chelipeds unequal in both sexes ; fingers rather short, pointed, 

 not hollowed. 



The abdomen of the male consists of seven separate segments . 



Heteropanope closely resembles Panopeus (e.g. P. herbstii), but 

 differs in having the crests of the endostome much more distinct, and 

 all seven segments of the male abdomen separate. 



Key to the Indian species of Heteropanope. 



I. Carapace decidedly convex, both chelipeds perfectly smooth 



to the naked eye H. Ixvis. 



II. Carapace almost flat, wrist and hand of smaller cheliped 



studded with vesiculous or pearly granules H. indica. 



131. Heteropanope indica, de Man. 



Heteropanope indica, de Man, Journ. Linn. Soc, Zool., XXII. 1887-88, p. 53, 

 pi. iii. figs. 1, 2. 



Carapace more than two-thirds as long as broad, very little convex, 

 surface somewhat granular and scantily tomentose near the margins. 

 Gastric region and its three sub-regions faintly indicated. Two series, 

 starting respectively from the 3rd and 4th teeth of the antero- lateral 

 margins, of discontinuous wavy finely granular ridges cross the 

 carapace transversely, fairly parallel with the common curve of the 

 frontal and antero-lateral borders. 



The finely granular orbital margin has the two grooves near the 

 external angle, and the gap just below the external angle, distinct. 



Antero-lateral border cut into four teeth, of which the first two are 

 broad thin and compressed and the last two pointed and subpyramidal ; 

 the edges of all are finely granular. 



Chelipeds and legs more or less tomentose. Chelipeds very un- 

 equal ; a curved spine-like tooth at distal end of upper border of arm, 

 and a spine at inner angle of wrist : upper and outer surface of smaller 

 hand and wrist studded with vesiculous granules ; larger hand quite 

 smooth, very large, little shorter than the greatest breadth of the 

 carapace. 



