1899.] A, Alcock — Carcinologiml Fauna of India, 141 



Differs from Dromia only in the followiiit^ particulars : — 

 The tomentam when present is much shorter and more velvet-like. 

 The legs, or at least the first two pairs of them, are nodular, as well as 

 the clielipeds. According to Bouvier and Ortmann the chelipeds are 

 without an epipodite ; but in G. lateralis this is not the case, and a 

 small epipodite is present. The ridges that define the efferent branchial 

 channels aie distinct and unbroken. 

 The species are all small. 



Key to the Indian species of Cryptodromia, 



I. Carapace smooth. Cnon-granular) : — 



1. No spines on dorsal surface of carapace ;— 



i. Front cut into 3 teeth, all of which are plainly visible 

 in a dorsal view : antero-lateral borders of carapace 

 with more than one tooth : legs nodular : — 



a. Antero-lateral borders with 3 teeth, (not including 

 the outer orbital angle and some teeth on the 

 subhepatic region) ... ... ... C tuherculafa, 



6. Antero-lateral borders with 2 teeth (not including 

 the outer orbital angle, etc.) : — 



o. Regions of carapace well defined : no tubercle 



on the surface of the maxillipeds... ... C. canaliculata, 



j5. A pearl-like tubercle in the middle of the 

 exposed surface of the merus of the external 

 maxillipeds ... .*• .,. C. hnllifera. 



ii. Front cut into 3 teeth, the middle one of which is 

 hardly seen in a dorsal view : antero-lateral borders 

 of carapace with a single tooth, at their anterior end : 

 legs hardly nodular ... ... ,,. C. hilgendorjit, 



2. A dorsal spine on the hepatic region of the carapace, just 



behind the outer orbital angle ... ... ... C. de Manii 



II. Carapace (and appendages also) profusely granular: the 

 regions of the carapace well defined and areolated : — 



1. Carapace subcircular in outline, its antero-lateral borders 



entire ... ... ... ... ... G. ehalioides, 



2. Carapace pentagonal in outline, its antero-lateral borders 

 dentate ... ... ... ... ... C Gilesii. 



7. Droniia (Cryptodromia) tuberculata, Stimpson. 



Cryptodrornia tiiherculata, Stimpson, Proc. Ac. Nat. Sci., Philad. 1858, p. 239 : 

 de.Man, Archiv. f, Naturges. LIII. 1887, i. p. 401. 



Var. pileifera, no v. 



Carapace etc. covered with a short scurfy tomeutum which does not 

 conceal the underlying texture. 



