196 A. Alcock — Cardiological Fauna of India. [No. 1, 



very prominent, divided info two lobes, each of which consists of a 

 convex inner part and an independent though not very prominent exter- 

 nal angle. 



The upper orbital margin is little prominent and has only one 

 notch and that indistinct : outer orbital angle not prominent. 



Antero-lateral border very much shorter than the postero-lateral, 

 cut into three sharp teeth : no subhepatic tooth. 



Chelipeds unequal: inner angle of wrists sharply pronounced, 

 upper and outer surfaces of hands granular. 



Legs slender, the longest pair are more than twice the length of 

 the carapace. 



Colours in spirit, carapace reddish-yellow, legs yellow. 



In the Indian Museum is a single specimen, from the Andamans. 



I identify this species with P. cursor on account of the long slender 

 legs, the subquadri lateral carapace, the very short antero-lateral borders, 

 and the broad front. 



116. ? Pilumnus cserulescens, A. M. Edw. 



? Pilumnus cserulescens, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, 

 p. 242, pi. ix. fig. 3 : L. Zehntner, Eev. Suisse Zool. II. 1894, p. 153. 



Carapace etc. covered with short fur, with long hairs interspersed, 

 about -§- as long as broad, subquadrilateral, convex in anterior half, flat 

 posteriorly : the regions very distinctly defined by well cut grooves, the 

 areola? convex and studded with granules of good size. 



Front a third the greatest breadth of the carapace, deflexed, cut 

 into two lobes the outer angles of each of which form independent 

 dentiform lobes. 



The upper orbital margin shows very faint traces of two shallow 

 notches : a small triangular gap below the sharp, but non-spiniform, 

 outer orbital angle. 



Antero-lateral borders a good deal shorter than the postero-lateral, 

 cut into three sharp teeth, in addition to which there is a small denticle 

 behind and below the outer orbital angle. 



Chelipeds unequal; upper and outer surfaces of wrists and of both 

 hands closely and sharply granular, fingers very short, inner angle of 

 wrists dentiform. 



Legs stout, the longest pair not much more than two-thirds again 

 the length of the carapace. 



Colours in spirit, dull blue with a brownish tinge in places, fingers 

 blackish brown. 



In the Indian Museum is^a single specimen from the Andamans. 



I judge this species to be P. cserulescens by the Xanthodes-like 

 form and sculpture of the carapace mentioned by Milne Edwards. 



