( 68 ) 



Antennal acicle hardly bifurcate, its outer limb reaches the base of 

 the terminal joint of the peduncle. Flagellum hardly two-thirds the length 

 of the carapace, coarse, thickly setose almost to the tip. 



Left cheliped vastly larger than the right, with the wrist much inclined 

 outwards and the hand inwards ; its length, measured in a straight line, is 

 more than i§ times the length of the carapace. The merus is broad and 

 trigonal, its broadly-convex upper surface and its lower surface granulous, its 

 anterior edge spinose : the carpus is much longer than broad, and is peculiarly 

 curved outwards owing to the prominence of its inner angle, its upper sur- 

 face is beset with rows of granules, its inner border is hirsute : the palm is 

 half again as long as broad, and broadens distally ; its edges are granulous 

 and its outer surface finely reticulated and microscopically granulous: the 

 fingers have the outer surface granulous and the opposed edges setose in 

 tufts : the dactylus makes up very little more than half the total length of 

 the hand. 



The edges of the right cheliped are hirsute, and its dactylus is very 

 long. 



The 2nd and 3rd legs of both sides exceed the left cheliped by nearly 

 half their dactylus : the merus and carpus are short, and have the anterior 

 edge spinose and the outer surface granulous : the stout propodites have the 

 anterior surface granulous in longitudinal lines and the outer surface in 

 transverse lines : the dactyli, which are somewhat falciform, are twice the 

 length of the propodites and have their concave edge plumose. 



Length of carapace 22 millim. 



All the Indian Museum specimens are in shells f^f Oltva, to the long 

 narrow aperture of which the broad flat body is well adapted. 



Distribution : coasts of peninsular India. 



Malabar coast F. Day (2). 



Vizagapatam Museum Collector (2). 



Orissa coast, 7-10 fath. " Investigator.'' 



"iQ • Madras Purchased (21). 



5. Diogenes av.\rus, Heller. Plate VI., fig. 6. 



Diogenes avarus Heller, Novara Crust. 1865, p. 83, pi. vii.. fig. 2: Walker, Journ. IJnn. 

 Soc, Zool. XX. 1887. p. 113, pi. viii., fig. 6. 7 : de Man, Journ. Linn. Soc, Zool., XXII. 1888, 

 p. 236 : Henderson, Tr. Linn. Soc, Zool., (2) V. 1893, p. 417: Ortmann, in Semon's Zool. 

 Forschungsr. V. 1894, p. 32: Nobili, Boll. Mus. Torino, XVIII, No. 452, 1903, p. 15. 



