Carcinological Fauna of India, 141 
Differs from Dromia only in the following particalars :— 
The tomentum 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 chelipeds. According to Bouvier and Ortmaun the chelipeds are 
without an epipodite; but in C. lateralis this is not the case, and a 
small epipodite is present. The ridges that define the efferent branchial 
channels are distinct and unbroken. 
The species are all small. 
Key to the Indian species of Cryptodromia. 
I. Carapace smooth (non-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) Hoe Or .. C. tuberculata. 
b. Antero-lateral borders with 2 teeth (not including 
the outer orbital angle, etc.) :— 
a, Regions of carapace well defined : no tubercle 
on the surface of the maxillipeds... ... CG. canaliculata, 
B. A pearl-like tubercle in the middle of the 
exposed surface of the merus of the external 
maxillipeds see ooo w. C. bullifera, 
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 coe o. C. hilgendoryfir, 
2. A dorsal spine on the hepatic region of the carapace, just 
behind the outer orbital angle ... see ... OC. 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 ese oC “ ove .. OC. ebaliordes. 
2. Carapace pentagonal in Patling, its antero-lateral borders 
dentate Hee tee ses see we C. Gilesii. 
7. Dromia (Cryptodromia) tuberculata, Stimpson. 
Cryptodromia tuberculata, Stimpson, Proc. Ac. Nat. Sci., Philad. 1858, p. 239: 
de Man, Archiv. f. Naturges. LIII. 1887, i. p. 401. 
Var. pileifera, nov. 
Carapace etc. covered with a short scurfy tomentum which does not 
conceal the underlying texture. 
591 
