i:>2 Ux. A. 0. Walker on 



Ventral rcaohino^ a little hoyoiul ovi^^iu of anal. Caudal 

 rounded. Caudal peduncle once and .\ as long as deep. 

 Scales 33 p, ; lat. 1. §. Pale olive above, silvery white 

 beneath ; a blackish opercular spot ; a dark grey band from 

 the latter to the root of the caudal ; a rather indistinct dark 

 vertical bar below the eye ; dorsal aud caudal fins greyish; 

 ventrals yellow, the outer rays blackish ; anal yellow, with 

 three orange ocellar spots, eucircled with red, on the posterior 

 part. 



Total length 140 ram. 



A single specimen from Bunjako. 



LXI. — Prduninari/ Descripfions of new Species of Amphipoda 

 from the ''Discovery'' Antarctic Expedition^ 1902-1904. 

 By Alfred O. Walker, F.L.S., F.Z.S. 



Fani. Hyperiidse. 



IJyperia macronyx *, sp. n. 



S.E. of Coalman I., 22/2/04; six specimens, immature: 

 length of largest 10 mm. W.Q.f 16/4/03, 5 f.; one specimen. 

 W.Q. 18/5/08, 10 f. W.Q. 1/8/03, 10 f. ; eight specimens. 



Head shorter than the first two segments. Eyes occupying 

 the entire head. Segments all free' \ the three pleon-segments 

 with a tooth on llie iiind epimeral angle. Carpal process of 

 the first gnathopods reaching the middle of the hind margin of 

 the hand J which is ovate, less thati twice as long as wide, the 

 hind margin convex and finely serrate. Carpal process of the 

 second jjair reaching considerably beyond the middle of the 

 hand; the limb otherwise as in the first; branchiifi of first 

 pair oblong, wider below ; of second pair pyriform. 



First and second peratopods longer than the gnatiiopods ; 

 first joint a little wider than the fourtii, which is twice as 

 w'ide and about two thirds as long as the fifth, with five long 

 equidistant spines on the hind margin; the fourth and fifth 

 joints have their hind margins finely serrate. Daclyli 

 slightly curved, slender, about hafas long as the fifth joint. 



Third perceopods: first joint subequal to the fifth, about 

 twice as long as wide, widening near the middle ; fifth joint 



* From the long dactyli of tlie perreopods. 

 f W.Q. =wiiitt'r-f|Uiirtc'r.i. 



