56 



Chelipeds very mucli more massive than the legs : they and the first pair of 

 legfs 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 sur- 

 faces 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 corresponding pro- 

 podites : 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 or 6th 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 markings. 



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

 Ceylon 28 and 34 fathoms. 



This species is to be distinguished from P. granulata only in not having the 

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



From P. pnlchra Miers (Zool. H. M. S. " Alert," p. 2G0, pi. xxvii. fig. A), it 



differs in having a tooth on the supra-orbital border, which border is serrulate, 



not entire, and in being more granular. 



713. (Types of the species). Port Blair, Andamans. Wood-Masou Coll. 



8699 & 2839 , , p „ r„„i.„ 



Andamans. tr. H. Booley. 



Off S. coast Ceylon, 34. fatlaoms. " Investigator." 



Off N.-E. coast Ceylon, 28 fathoms. " Investigator." 



Andamans. " Investigator." 



Lasiodromia n.n. 



Somalodromia, Miers (nee Homolodromia A. M. Edw,, 1S80), Zool. H. M. S. Alert, p. 553, 1884. 

 Pseudodromia, Alcock {nee Stimpson, Henderson, Ortmann), J. A. S. B., LXVIII., pt. 2, 1899, p. 149. 



Body and appendages remarkably tomentose. 



Carapace somewhat elongate. Front broad, deeply cut into two prominent 

 lobes, each of which again is broadly bifid : the gap between the two lobes is in 

 contact with the epistome. 



6 7 



5352-53.50 



9 

 11.34 



lo"' 



3512 

 10 ■ 



