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



Aiitero-lateral borders considerably less tban two-thirds the length 

 of the postero-lateral, cut into four teeth (including the outer orbital 

 angle) of which the last is spiniform and is rather remote from the 

 others. 



Posterior border peculiar in being quite flush with the surface of 

 the carapace, and concave or broadly excised. 



Orbits large, their major diameter three-fourths the width of the 

 front, without any dorsal inclination : there are two indistinct grooves 

 in the upper border, and the lower border is concave with the inner 

 angle prominent and acutely dentiform. Eyes large, placed mostly on 

 the ventral surface of the eyestalk. 



Antennal flagella not much longer than the orbit. 



The external maxillipeds fall considerably short of the anterior 

 edge of the palate. 



Chelipeds somewhat unequal, the larger one is between H and If 

 times the length of the carapace : except for a sharp tooth at the inner 

 angle of the wrist, and for a small sharpish tubercle at the far end of 

 the sharply-defined inner border of the hand, they are smooth and 

 unsculptured. The hands are full and very deep : the fingers are stout 

 but end in acute hooked tips : in the smaller cheliped, but not in the 

 larger cheliped, they are longer than the hand. 



Legs stoutish, compressed, a notch and tooth at the far end of the 

 anterior border of the merus of all. The 2nd pair, which are slightly 

 longer than the 1st and 3rd, are from 1 f times to twice the length of 

 the carapace : all three end in a very acute styliform dactylus. The 4th 

 pair, which are about equal in length to the chelipeds, have the merus 

 four times as long as broad, the carpus not particularly dilated, and 

 the propodite and dactylus typically foliaceous and blade-like, the 

 dactylus however ending in an acutely mucronate tip : the posterior 

 border of the merus is unarmed. 



In the Indian Museum are two specimens, both females, from the 

 Andaman Sea 185 and 405 fras. The carapace of the larger one is 

 48 millim. long and 51 millim. broad. 



Parathranites, Miers. 

 Lupocyclus (Parathranites) orientalis, Miers, Challenger Brachyura, p. 186. 



Carapace hexagonal, convex, moderately transverse, the regions well 

 defined and with some definitely-placed tubercles but no transverse 

 ridges. 



The front, which projects beyond the ill-defined inner supra-orbital 

 angles, is less than a fourth the greatest breadth of the carapace in 

 width, and is cut into four teeth. 



