148 A. Alcock — Garcinological Fauna of India. [No. 3, 



Petalomera granulata var. indica, nov. 



Carapace etc. hardlj at all hairy : edges of the legs with some 

 hairs. 



Carapace a little longer than broad, convex in both directions, with 

 numerous unevenly distributed vesiculous granules : all the regions are 

 distinct, but are not all equally well defined. The cervical and bran- 

 chial grooves are both present. 



Front dorsally grooved in the middle line, cut into 3 serrulate 

 teeth, of which the lateral ones are large and triangular, while the 

 middle one is small and is on a much lower plane. 



Upper border of orbit serrulate : a tooth near its middle marks the 

 true inner supra-orbital angle. Outer orbital angle pronounced but not 

 dentiform. The suborbital lobe forms a granular tubercle or denticle. 



Antero-lateral borders of the carapace cut into 3 granular teeth, 

 the first being subhepatic. 



Chelipeds very much more massive than the legs : they and the 

 first pair of legs have the merus petaloid, owing chiefly to the thin 

 expanded crest-like upper border of that joint. The merus of the next 

 pair of legs is not petaloid, though its upper border is sharp. In the 

 chelipeds the inner border of the wrist and the upper border of the 

 palm are prominent and, like the upper and outer surfaces of those 

 joints, are granular : there are also two sharp tubercles at the distal 

 end of the outer surface of the wrist. 



The first two pair of legs have a few small granules on some of the 

 joints. 



The last two pair of legs are slender and end in small claw-like 

 dactyli, which are opposed to a very small spine at the end of the cor- 

 responding propodites : the last pair of legs is very slightly longer than 

 the penultimate pair. 



In both sexes the abdomen has a convex ridge down the middle 

 line and the 2nd-5th terga have a few scattered granules on their 

 surface. 



The largest specimen is slightly over 15 millim. long, and is 

 15 millim. broad, but in young specimens the carapace is more elongate. 



Colours of fresh spirit specimens : yellow with some reddish mark- 

 ings. 



In the Indian Museum are 22 specimens, from the Andamans and 

 from of£ Ceylon 28 and 34 fathoms. 



This variety is to be distinguished from P. graiiulata only in not 

 having the merus of the second pair of legs (3rd pereiopods) petaloid. 



From P. pulchra Miers (Zool. H. M. S. "Alert" p. 260, pi. xxvii. 

 fig. A), it differs only in having a tooth on the supra-orbital border, 



