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



thirds the greatest breadth, its surface closely punctate: all the regions 

 are quite plainly defined by grooves, which also subdivide the gastric 

 into three subregions, and the epi branchial into two — an anterior and 

 a posterior ; and the cardiac region has a distinct bulge. The sharp- 

 cut antero-lateral borders are, like the anterior border, very finely 

 serrated, aud are marked off from the blunt postero-lateral borders by a 

 minute spine. 



The larger cheliped is barely half again as long as the carapace : 

 both chelipeds have the lower edge of the arm finely serrated, have a 

 spinule near the far end of the upper border of the arm and one at the 

 outer angle of the wrist, and have the inner angle of the wrist strongly 

 dentiform. 



The legs have their edges, except in the case of the dactyli, closely 

 and evenly spinulate, but there is a tendency for the spines to fail on 

 the posterior edge of the carpus and propodite. The 3rd pair, which 

 are considerably the longest, are much more than 2§ times the length 

 of the carapace. The legs increase remarkably in length from the 1st 

 to the 3rd, and the 4th are about the same length as the first. The 

 dactyli are sharp, stiong, styliform and ciliated: those of the last pair 

 are curve.l, those of the other pairs are straight. 



Henderson records this species from the Gulf of Martaban : the 

 only specimens in the Indian Museum are from Hongkong. 



29. Typhlocarcinodes, n. gen. 



Apparently one of the links between Typhi ocarcinus and its allies 

 on the one hand and Scalopidia on the other. 



Carapace moderately deep, shaped much as in Typhlocarcinus, but 

 slightly more elongate, the free edges hairy. Fronto-orbital border 

 about three-fifths, front about a third, the greatest breadth of the 

 carapace: front prominent, its free edge convex and entire. 



Orbits in the normal position, narrow, button-hole shaped ; eye- 

 stalks tapering, immovable; eyes obsolete or nearly so. Antennules 

 cramped, folding very obliquely— nearly longitudinally — in proper pits. 

 Antenna! penduncle small and cramped, the flagellum standing in the 

 orbital hiatus. 



Epistome sunken, linear : buccal cavern square, its anterior angles, 

 like the antero-external angles of the merus of the external maxillipeds, 

 rounded off: the external maxillipeds completely close the buccal 

 cavern and have the flagellum articulated to the antero-internal angle 

 of the merus. 



The abdomen does not nearly occupy all the space between the last 

 pair of legs. 



