Oarcinolorjical Fauna of India. 327 



The above diagnosis is framed on a broken specimen, without 

 chelipeds or legs, in the Indian Museum. In the form of the front and 

 shape of the carapace this specimen has a strong resemblance to the 

 Typhlocarcinus integrifrons described and figured by ]\Tiers in Ann. Mao-. 

 Nat. Hist. (5) Vlir. 1881, p. 260, pi. xiv. fig. 1. Miers himself wrs 

 doubtful about referring his species to Typhlocarcinus. 



Our specimen is too much damaged to furnish a useful specific 

 diagnosis. 



Hephthopelta, Alcock. 



Hfiphthopeltii, Alcock, Investigator Deep Sea Brachynra, p. 76. 



Carapnce very deep, inflated, rudely semicircular, about as long ns 

 broad, convex foi-e and aft and vertically deflexed anteriorly, all its 

 borders entire and all, except the posterior, tumid, the cardiac and 

 branchial regions well delimited. 



Front conidderabl}' less than a third the greatest breadth of the 

 carnpace, bilobed, vertically deflexed ; the whole extent of the fronto- 

 orbital border is more than half the greatest breadth of the carapace, 'h.fl 



Orbits small, shallow, excavated in the vertically-deflexed anterior 

 border of the carapace, not concealing the eyes. Though the eyes are 

 small and their stalks immovaI)ly fixed, they are well formed, well 

 defined and loell pigmented . 



The antennulary fossss are completely filled by the basal antennnlary 

 joint, to the exclusion of theflagella. 



The basal antenna-joint is small, slender, and does not nearly reach 

 the front ; the flagellum, which arises in the orbital hiatus, is hai'dly 

 longer than the orbit. 



The epistome is of considerable width fore and aft and, though 

 sunken, is well defined from the palate. The buccal cavern is square, 

 though very slightly narrower in front than behind : the excurrent 

 branchial canals are well defined. The external maxillipeds, which 

 completely cover the buccal cavern, have the merus shorter and slightly 

 narrower than the ischium and somewhat oval in shape, and the palp 

 jointed to the antero-internal angle of the merus and of good size. 



The legs are all long and slender and end in a slender dactylus : 

 the third pair are slightly the longest. 



The chelipeds are lost in the single specimen obtained, which is a ' 

 female. 



30. Hephthopelta lugubris, Alcock. 

 Hephthopelta higuhris, Alcock, Investigator Deep Sea Brachy nrn, p. 77. pi. iv, .Ig. 2. 

 Carapace as long as broad, roughly semicircular or semiglobose, of 

 thin texture, its surface very finely frosted and somewhat pubescent. 



669 



