STALK-EYED CRUSTACEA 445 



Ibaccus, excepting the membranous articulation of first 

 maxillipede. Branchial plates as in Ibaccus. 

 Range. — West Indies, Papuan Sea. 



I. Phoberus caecus. 



PJwberus cceais ... A. Milne Edwards. 



Range. — Grenada ; in deep water. 



2. Nephropsis. 



NepJiropsis . . . Spence Bate, Wood-Mason. 



Carapace, not including the rostrum, rather more 

 than half the length of the abdomen, bisected by a 

 deep cervical sulcus. Abdomen dorsally smooth. Telson 

 quadrate. Eyes small, situated close together beneath 

 the rostrum. Internal antenna terminate in two slender 

 flagella ; the first joint has a large spine. The external 

 antennae have no basal scale. Mandibles robust, and 

 furnished with a three-jointed termination. First pair of 

 maxillipedes subpediform, seven-jointed, having a two- 

 jointed external appendage ; the external maxillipedes 

 long, slender, and pediform. The first pair of legs large, 

 the second and third pair slender ; the last two pairs 

 slender and simple. The first pair of abdominal appen- 

 dages has one branch, almost rudimentary ; the others are 

 long, slender, and two-branched. 



Range. — Bermuda, Papuan Sea ; in deep water. 



I. Nephropsis rosea. 



NepJu'Opsis rosea . . Suhn, Spence Bate. 



Astacus rosea . . . Suhn. 



NepJiropsis agassisii (?) A. Milne Edwards. 



Carapace slightly granular. Rostrum about half the 

 length of the carapace, armed with a strong tooth on each 



