Indian iJicp-sca Dreihjinj. 235 



terminal spine on the lower edge; the pi*opodite has the lower 

 edfje of the " palm " serrated, the upper edge having a 

 terminal spine; the dactylopodite, like the opposed "finger" 

 of the propodite, lias the usual fine fringe of sette ; the chclai 

 of the fifth pair of legs are not quite perfect, owing to the 

 shortness of the pollex. 



The first pair of abdominal appendages (in the female) are 

 almost rudimentary. 



Colour in the fresh state bright pink. 



Two females from Station 114, 922 fathoms. 



The largest sj)ecimen measures oG millim. in the mid- 

 dorsal line from the front edge of the carapace to the tip of 

 the telson. 



The characteristic features of this species are — (1) the 

 hump-backed carapace, and (2) the thin scabrous integument. 



66. Pentacheles Carpenteri^ sp. n. 



Carapace thin, granular, and spicular beneath a very close 

 fine fur ; its greatest breadth, which is in the posterior 

 third, is two thirds its greatest length; the median carina is 

 crested by a double row of very fine granulation, and bears — 

 (1) a double rostral spine, (2) three spines (of which the first 

 two form a pair) in the middle of the gastric region, and (3) 

 behind the cervical groove a very irregular series of 6 or 7 

 spines, some of which may be double ; the frontal margin is 

 most conspicuously excised between the orbital notches, and 

 is finely granular but without any large spines except the 

 rostral spine ; the posterior margin is narrow and smooth ; 

 the spinature of the lateral margins is irregular and is con- 

 cealed by very long setre, the spines number 4 to 6 in front 

 of the hepatic groove, 3 between this and the cervical groove, 

 and over 20 behind the cervical groove ; two conspicuous 

 spines, one behind the other, stand on a faint ridge that 

 delimits the gastric region on each side ; the dorsal sublateral 

 (branchiostegal) crests are sinuous, but hardly visible even on 

 a denuded carapace. 



The abdominal terga and pleurjB are faintly and distantly 

 pustulate ; all the terga except the sixth are strongly carinated, 

 the high crests of the carinaj being strongly emarginate or 

 bicuspid, but never forming spines ; a few tiny denticles at 

 the posterior edge of the sixth tergum are all that represents 

 a carina ; the crest of the anterior part of the telson forms an 

 upstanding spine. The setose margin of the pleurte is 

 smoothly moulded. 



The orbital notches are broad in front, triangular, and very 



16* 



