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



both are clothed with a short pubescence on the outer surface of the 

 carpus and hand, except towards the base of the immobile finger. The 

 carpus is sparingly tuberculate externally, with a sulcus running 

 parallel to the articulation with the hand, and separated from the latter 

 by a tuberculated strip : the outer surface of the hand is strongly 

 tuberculate, the tubercles with more or less acute apices, rather closely 

 crowded and without any definite arrangement. The fingers are short, 

 with white and obtuse tips, and the immobile one is placed in a straight 

 line with the lower border of the hand ; the dactylus is tuberculated 

 superiorly on its proximal half, and a prominent tooth is present on 

 either finger. The ambulatory legs are simply pubescent. The abdo- 

 men is smooth and seven-jointed in both sexes. The external maxil- 

 lipods are smooth, with a faint impressed line in the middle of the 

 proximal two-thirds of the ischium. The basal joint of the antennal 

 peduncle is joined to the sub-frontal process, and the terminal joints lie 

 in the orbital hiatus." 



" The largest specimen (a male) has the carapace 18*5 mm. long 

 and 25*3 mm. broad." 



126. Actumnus fissifrons, n. sp. 



Carapace and legs covered with a not very dense coat of hairs of 

 two kinds — long and short — the long hairs most numerous on the legs ; 

 chelipeds with very little hair. 



Carapace strongly convex in all directions, £ as long as broad, the 

 regions distinctly delimited and areolated by smooth shallow grooves, 

 the areolae being slightly convex and more and less granular. 



"Front not quite a third the greatest breadth of the carapace, 

 deflexed, broadly triangular, the apex with a deep button-hole fissure 

 ( the hole at the posteiior end), the outer angles separated from the 

 supra-orbital angles by a deepish notch. 



Supra-orbital margin thin, sharp, very prominent, deeply fissured 

 near the middle : infra-orbital margin thin, concave, fissured just below 

 the outer angle. 



Antero-lateral margin a little shorter than the postero-lateral, cut 

 into three sharp-edged anteriorly-acuminate teeth (exclusive of the 

 outer orbital angle) : postero-lateral margin deeply concave. 



Chelipeds markedly unequal : upper and outer surfaces of wrists 

 with a few granules, most numerous anteriorly ; upper and outer surfaces 

 of both hands— including a great part of the fingers— studded with 

 grauules, of which many are enlarged conical or pearl-like, and those 

 along the upper border are spiniform. 



Colours in spirit bright orange yellow. 



