1899. J A. Alcock — Carcinological Fauna of India. 147 



lobules or tubercles, of whicb only 2 belong to the true antero-lateral 

 border, the other 3 being on the subhepatic border and at the outer angle 

 of the buccal cavern. 



A granular tubercle on the postero-lateral border, just behind the 

 " cervical " groove. 



Legs and chelipeds crisply granular, the chelipeds and first 3 pair 

 of legs being also nodular: the nodules on the carpal joints being 

 prominent and acute. 



Last 2 pair of legs very slender, hardly half the length of the first 

 2 pair, ending in hook-like dactyli, not cheliform. 



AH the abdominal terga are symmetrically sculptured and granular. 



In the Indian Museum are 12 specimens, from off the Malabar 

 coast, 29 fathoms. 



The carapace of an egg-laden female is 8 millim. long and 8 J millim. 

 broad. 



This species is easily distinguished from D. ehalioides (1) by the 

 sharply pentagonal carapace and less-completely isolated areolae, (2) by 

 the much more prominent front, (3) by the antero-lateral borders being 

 broken by irrregular tubercle-like lobules, and (4) by the more abund- 

 ant sculpture of the abdominal terga: in everything but the form of 

 the meropodites of the chelipeds and first pair of legs it strongly resem- 

 bles Petalomera. 



Subgenus Petalomera, Stimpson, 



Petalomera, Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 226 : Ortmana in 

 Bronn's Thier Reich (loc. cit.) p. 1155 {name only). 



Petalomera closely resembles Gryptodromia, especially those species 

 (e.g. Gryptodromia ehalioides and Gilesii) in which the carapace is 

 granular and has the cervical and branchial grooves both well deve- 

 loped ; and, indeed, only differs from Gryptodromia in having the upper 

 border of the meropodites of the chelipeds and first, or first two, pair 

 of legs produced to form a crest so high and thin as to give the joint a 

 petaloid shape. 



As in Gryptodromia the sternal grooves of the female are widely 

 separated, and end on the second segment of the sternum. As in 

 Gryptodromia lateralis, there is a small epipodite to the chelipeds. 



There can be little doubt that, as Bouvier (Bull. Soc. Philomath. 

 Paris, 1895-96, p. 52) has remarked, Petalomera is a form slightly more 

 primitive than Dromia. 



14. Dromia (Petalomera) gramilata, Stimpson. 



Fetalomera granulata, Stimpson, Proc. Acad. Nat. Sci. Philad., 1858, p, 210. 

 J. II. 19 



