1900.] A. Alcock — Carcinological Fauna of India. 297 



*Cyclograpsus, Milne Edwards, Hist. Nat. Crust., II, 77, 1837 

 ( = Gnathochasmus, MacLeay, in Smith's 111. Ann. S. Afr. p. 65, 1838). 



*Eeliee, De Haan, Faun. - Japon., Oust, p. 28: Miers, Challenger 

 Brachyura, p. 268. 



*Metaplax ( = Rhaconotus, Gerst.). 



*Metasesarma. 



Metopaulias, Mary J. Rathbun, P. U. S. Nat. Mas. XIX, 1897, 

 p. 144. 



*Sarmatium { = Hetagrapsus, Edw.). 



# Sesarma ( •= Holometopus, Edw.). 



Subfamily IV. Plagusiin^, Dana. 



*Liolophus ( = Acanthopus, De Haan). 

 *Plagusia. 



Family GEOCARCINID^E, Dana. 



*Cardiosoma ( = Discoplax, A. M. Edw.). 



*Epigrapsus. 



*Gecarcinus, Leach, Trans. Linn. Soc. XI, 1815, p. 322 : Miers, 

 Challenger Brachyura, p. 217. 



*Pelocarcinus ( = Gecarcoidea, Edw., = Hyla30carcinus, W.-M.,— 

 Limnocarcinus, de Man). 



Uca, Latr., Encycl. Method. X, p. 685 : Milne Edwards, Hist. Nat. 

 Crust. II, 21. 



Family PALICID^E, Rathbun (name only). 



*Palicus (=Cymopolia). 



^Crossotonotus, A. Milne Edwards, Nouv. Archiv. du Mus. IX, 1873, 

 p. 282, and Journ. Mus. Godeffroy, I, 1873, p. 258. 



Family PTENOPLACID^E, Alcock. 

 *Ptenoplax. 



Family I. GONOPLACID^E, Dana. 



Subfamily i. Pseudorhombilinj:, Alcock. 



Key to the Indian Genera. 



I. Front with the edge cut straight and square, never curved, 

 often prominent : — 



1. The fronto-orbital border, though extensive, is much 

 less than the greatest breadth of the carapace., so 

 that the untero-lateral borders of the carapace have 



