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XIV. Descriptions of nine new Species of Amphipodous Crustaceans from the Tropical 

 Atlantic. By the Rev. Thomas E,. R. Stebbing, M.A. 



Received November 1st, 1S92, read December 20tb, 1892. 



[Plates LI.-LV.] 



IHE specimens described in this paper were obtained by Mr. John Rattray, during 

 the expedition of the 'Buccaneer,' the telegraph-ship belonging to the Silvertown 

 Company, when engaged in surveying for the laying of cables on the West Coast 

 of Africa. The scientific investigations made during the expedition were arranged 

 for, and the expenses met by, Dr. John Murray, the Director of the ' Challenger ' 

 Commission, and Mr. J. Y. Buchanan, the latter of whom accompanied the ship. 



Tribe HYPERIDEA. 



Family SCINID^, Stebbing, 1888. 



The head is small, of less width than the perason. The eyes are small. The first 

 antennae are large, straight, generally (perhaps always) three-jointed, attached at the 

 front corners of the head. The second antennae are attached to the underside of the 

 head ; they are rudimentary in the female, but in the male become long and slender, 

 after being at an early stage short and curved one over the other. The mandibles are 

 without palp. Both pairs of maxillfe are well developed. The maxillipeds have a 

 small inner plate, and two large outer plates which are distally narrowed. Both first 

 and second gnathopods are simple. Of the perseopods the third are generally the 

 longest, the fifth always the shortest. The pleon is narrower than the perseon. The 

 fifth and sixth segments are generally (perhaps always) coalesced. In the uropods 

 only the outer branch is free. The telson is small. 



Definitions of this family have been given recently by Dr. Bovallius, Professor Chun, 

 and Professor Sars. With all of these the above substantially agrees. Chun includes 

 the character that the body is not compressed, which will not apply to the new species 

 Scina stenopus, and is rather vague in its application to other species. Sars speaks of 

 the first antennas as divergent, an epithet which is unsuitable, since, though capable of 

 great divergence, they can lie with the inner margins perfectly parallel, and one may 

 even suspect that this is their natural position when at rest. Both Bovallius and Sars 

 speak of the second antennae in the male as angularly bent. This angulation, it may 

 be remarked, is distinct from the zigzag folding familiar in several other Hyperid 

 genera. As Streets has explained, it merely refers to a single bend at one point of the 



VOL. XIII. — PAET X. No. 1. — February, 1895. 3 e 



