REPORT ON THE AMPHIPODA. 1519 



Pleojiods. — Joints of the rami from nine to ten in number. 



Uropods scarcely differing from those of Eupronoe inscripta, except that the peduncles 

 of the first and second pairs appear to be shorter in proportion to the rami. 



Telson rather more than half the length of the third uropods, a little longer than 

 broad, triangular, with a tolerably acute apex, gradually reached without any abrupt 

 narrowing. 



Length, between a fifth and a quarter of an inch. 



Locality.— Station 106, August 25, 1873; Tropical Atlantic; lat. 1° 47' N., long. 

 24° 26' W. ; surface to 40 fathoms ; surface temperature, 78 c, 8. One specimen, 

 male. 



Remark. — The specific name refers to the similarity which the species presents in 

 different points to various others, such as Eupronoe armata, Claus, and those which 

 have been mentioned in the description. 



Eupronoe atlantica, n. sp. 



Head deep and laterally somewhat compressed ; the frontal space which is not 

 occupied by the eyes having little dark colour-spots. 



Eyes very dark in the specimens preserved in spirits. 



Lower Antennas. — Third (first free) joint of the peduncle slightly longer than the 

 fourth, the fifth a little longer than the third ; the first joint of the flagellum only a third 

 as long as the last of the peduncle, the small and slender second joint not a quarter the 

 length of the first. 



First Gnathopods. — Side-plates produced to an almost acute apex in front. First 

 joint not twisted, broadest below the middle, both margins somewhat sinuous, the front one 

 the more so, this having five cilium-bearing indents ; near the hind margin at the upper 

 part of the inner surface there are short lines or grooves corresponding with those which 

 in some species form the great projecting elbow in this joint; second joint very small; 

 third joint much larger than the wrist, narrow at the neck, the distal breadth equalling 

 the length of the joint, most of the very convex hind margin finely pectinate ; the wrist 

 not longer than broad, at its widest much narrower than the preceding joint, the 

 irregularly convex hind margin pectinate where free from the lobe of the front joint ; 

 the hand rather longer than the wrist ; the finger curved, fully half the length of the 

 hand. 



Second Gnathopods. — First joint with the sinuous front margin almost smooth, the 

 hind margin smooth, slightly convex ; the third joint smaller than the wrist, the hind 

 margin slightly furred, its rounded apex a little produced ; the proximal part of the wrist 

 not so long as the hand, the pectinate process rather broad, not so long as the hand, on 



