416 Rev. A. M. Norman on new Crustacea Amphipoda. 



Mcera LovSnij Bruzelius. PI. XXI. figs. 11, 12. 



Gammarus Loveni, Bruzelius, Skandinaviens Amphipoda Gammaridea 



(1859), p. 59, pi. 1. fig. 9. 

 M(sra Loveni, Bate, Cat. Amphip. Crust. Brit. Mus. p. 193, pi. 35. fig. 1. 



Superior antennce having the first two joints of the peduncle 

 remarkably long, slender, and smooth, the second joint slightly- 

 longer than the first, third joint not one-third the length of the 

 second; flagellnm (about 17-jointed) not quite as long as the 

 peduncle ; secondary appendage 5-jointed, equal to four joints 

 of flagellum in length. Inferior antennce scarcely, if at all, 

 longer than peduncle of superior antennae, the peduncle having 

 the last two joints subequal and long ; flagellum of about seven 

 joints. First gnatJiopods with wrist subtriangular, posteally 

 furnished with numerous tufts of setae, and having five trans- 

 verse and three oblique rows of setae on the side, the setae of 

 the oblique rows much smaller than those of the transverse 

 rows ; hand subovate, equal in length to the wrist, wider at 

 the Extremity than at the base ; palm convex, scarcely defined, 

 scattered setae on both margins ; finger strong, only slightly 

 curved, simple, with a few setae on the outer and about nine 

 little cilia on the inner margin. Second gnatJiopods with a 

 short triangular wrist, which is much wider at the extremity 

 than the last, and has a few scattered setae on the front, and 

 numerous setse on the hinder margin ; hand large, twice as 

 long as the wrist, subquadrate, widening distally, with a few 

 setae on each margin ; palm slightly oblique, defined, a little 

 convex, and serrated, serrations distant, six only on length of 

 palm ; finger strong, slightly curved, simple, with a few set^e 

 on exterior and about nine minute cilia on inner margin. 

 First pereiopods having the nail long (half as long as hand) 

 and nearly straight. 



The only evidence I as yet have of this species being British 

 is the anterior half of the animal here described, which was 

 dredged by Mr. Jeffreys and myself in the Sound of Skye, in 

 1866. It agrees so closely with Bruzelius's description and 

 figures of M. Loveni that there can, I think, be no question as 

 to its identity with that species. I have very minutely de- 

 scribed the parts of the animal obtained, that those who here- 

 after may meet with perfect specimens of M. LovSrii may be 

 better able to decide whether the Skye fragment has rightly 

 been referred to that species ; but of this I do not entertain the 

 slightest doubt, as it exactly agrees with Bruzelius's descrip- 

 tion and figures. 



Mcera Batei^ n. sp. PL XXII. figs. 1-3. 

 Superior antennce having second joint of peduncle consider- 



