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Front considerably less than a third the greatest breadth of the carapace, 

 bilobed, vertically deflexed. 



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 immovably fixed, they are well formed, well defined and well pigmented. 



The antennulary fossae are widely open to their respective orbits, and are 

 filled by the basal antennulary joints, to the exclusion of the flagella : the inter- 

 antennulary septum, though very narrow, is complete. 



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

 front ; it lies between the eyestalk and antennule : the flagellum, which arises 

 in the orbital hiatus, is hardly longer than the orbit. 



The epistome is of considerable width fore and aft. The buccal cavern is 

 square, though 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 last 

 pair are subdorsal. 



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



Eephthopelta is closely allied to Camatopsis, but differs from it (1) in the 

 form of the carapace, which is inflated and subspherical and has the fronto- 

 orbital region vertically deflexed, (2) in the well formed eyes, (3) in the small 

 antennary flagella, (4) in the narrower and differently shaped merus of the 

 external maxillipeds, and (5) in the longer and more slender legs. 



Both it and Camatopsis connect the Bhizopinx with the PinnoteridcB. 



Hephthopelta lugubris, n. sp. Plate IV. fig. 2. 



Carapace as long as broad, roughly semicircular or semiglobose, of thin tex- 

 ture, its surface very finely frosted and somewhat pubescent. 



The fronto-orbital region is vertically deflexed and almost invisible in a 

 dorsal view. 



Epibranchial and cardiac regions tumid, circumscribed by deepish grooves. 



Legs subcylindrical, with a finely frosted and pubescent surface : the third 

 pair, which are slightly the longest, are about 2f times the length of the carapace : 

 the posterior (lower) border of the merus of the first two pairs is spinulose. 



Colours in spirit, light yellow, eyes black. 



A single female, without chelipeds, from the Andaman Sea, 490 fms. The 

 carapace is 8 millim. long, and the same in breadth. 

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