1896.] A. Alcock — Garcinological Fauna of India. 241 



7. The chelipeds, in the adult male, are less than twice the*length 

 of the carapace : the distal end of the upper surface of the arm is 

 covered with granules, and the greater part of the under sui-face of the 

 arm is granular : tlie wiist and hand of the male have, along their inner 

 edge, a row of granules quite visible to the naked eye : the hand is only- 

 half again as long as broad. 



8. The size is a good deal smaller — the carapace of the adult male 

 being about 9 millim. long and 10 millim. broad, that of the adult 

 female being about 8 millim. long and 9 millim. broad. 



9. Colours in spirit : dorsum blue-black, with a coppery tinge which 

 is m(i)st marked on the chelipeds. 



12 adults (male and female) from off Puri, 10 fathoms, from Mad- 

 ras, and from Karachi, are in the Indian Museum. 



70. Philyra sexangula, n. sp. Plate VII. fig. 2. 



The whole exoskeleton, excluding the tips of the fingers and 

 dactyli, is closely covered with a short close microscopic velvet-like 

 pubescence — both dorsally and ventrally. 



Carapace as long as broad, shar^jly hexagonal, traversed fore and 

 aft by an interrupted median carina : the branchial regions are also 

 traversed obliquely backwards each by a carina which terminates on 

 either postero-lateral margin at a sharp eminence. The straight pos- 

 terior margin has its outer angles strongly dentiform. 



The side wall of either hepatic region forms an independent facet, 

 which also involves the front and thus presents a condition intermediate 

 between that of P. platychira and P. scahriuscula. 



The edge of the front is straight and bilobed, and the straight 

 edge of the epistorae projects beyond it. There is a slight notch in the 

 edge of the epistome beneath the eye on either side. 



The chelipeds in the adult male are nearly 2| times as long as 

 the carapace; their upper surface, from the base of the arm to the 

 finger cleft, is traversed by a sharp ridge ; they are devoid of any 

 granules visible through the general velvet : the hand is twice as long 

 as broad, and the fingers are rather over two-thirds the length of the 

 hand and have their opposed edges finely denticulate and hairy : the 

 inner edge of the upper surface of the hand is traversed by a second 

 sharp ridge. 



The legs are slender and compressed, the under edge of their pro- 

 podites and dactyli being fringed with long hairs. 



The abdomen of the male appears to consist of only two pieces, 

 namely a small apical piece, and a long triangular plate in which the 

 6th tergura is marked off by a groove and bears a strong median tooth. 

 J. II. 31 



