1898 .] A. Alcock — Carcinological Fauna of India. 187 



There is however one species, Buppellia vinosa, Edw., that is 

 entirely different from any of the species (with, perhaps, the exception 

 of Buppellia lata, A. M. E.) with which it has hitherto been supposed 

 to be congeneric. 



This species I have separated as the type of a new genus Baptozius. 



If, however, the other species of H. Milne Edwards' genus Buppellia 

 are referred to Ozius, then the name 'Euruppellia must be retained, in 

 a different sense, for Buppellia vinosa Edw., and the name Baptozius 

 must lapse. 



108. Ozius (Euruppellia) tenax, Ruppell. 



Cancer tenax, Ruppell, 24 Krabben roth. Meer., p. 11, pi. iii. fig. 1, pi. vi. fig. 5. 

 Endora tenax, De Haan, Faun. Japon. Crnst., p. 22. 



Buppellia tenax, Milne Edwards, Hist. Nat. Crust. I. 421 : Kossmann, Keise 

 roth. Meer., Crust., p. 40. 



Carapace transversely oblate-oval, two-thirds as long as broad, 

 rugulose and granular antero-laterally, smooth to the naked eye else- 

 where. Gastric region well demarcated in its anterior two-thirds, and 

 broken up into five incompletely separated but rather convex lobules : 

 branchio-hepatic regions divided into two transverse somewhat convex 

 areas, independent of the rugosities inside the antero-lateral margin. 



Front sunk below the level of the orbits, cut into four equidistant 

 rounded granular teeth. Supra-orbital margin tumid, well delimited 

 from, carapace, with two distinct grooves near the outer angle. Infra- 

 orbital margin separated from the supra-orbital by a notch, deeply 

 concave between the prominent dentiform internal and external angles. 



Antero-lateral border granular, cut into five teeth, the first four of 

 which are broad and anteriorly-acuminate, the fifth tuberculiform. 



Chelipeds markedly unequal ; upper and outer surfaces of wrist 

 very finely granular, upper and more or less of outer surface of hand 

 granular and studded with larger pustulous granules : inner angle of 

 wrist bluntly bicuspid : fingers pointed, those of smaller hand long and 

 rather slender, as in typical Ozius; those of larger hand stout, the 

 movable finger with a huge tooth at base, as in Indian species of 

 Ozius. 



Legs stout, finely granular under a lens, but smooth to naked eye ; 

 the dactyli covered with velvet up to the claw. 



Colours in spirit reddish yellow, the reddish tinge darkest on 

 carapace. 



In the Indian Museum is a fine specimen from the Mekran (Balu- 

 chistan) coast. 



