collected during the Cruise of the ‘ Oceana.’ 229 
AMPHIPODA. 
Tribe HYPERIIDEA. 
Genus Hyrverta, Latreille. 
Hyperia Latreillei, M.-Edw. 
This species is now referred both by G..O. Sars and A. M. 
Norman to H. galba (Mont.). 
One young. Length 3 millim. Net 5d, 950 fath. 
Genus Hypzeriotpes, Chevreux, 1900. 
Hyperioides longipes, Chev.* (Pl. XIX. figs. 7-13.) 
Head very large, as long as the first five body-segments 
united, the frontal outline rather concave, the sides produced 
downwards in two lobes, of which the lower margin is trun- 
cate, with rounded angles. ‘The eyes occupy nearly the whole 
upper part of the head, and consist of dark red transverse 
bands. 
Mesosome shorter and rather narrower than the metasome, 
all the segments distinct except the first and second, which 
are dorsally united, the seventh the widest. Metasome 
deeper than mesosome, the third segment having the hinder 
angle bluntly rectangular. 
Antenne short and simple, the tips of the lower reaching 
just below the produced cephalic lobes. 
The first and second gnathopods are almost alike, the 
second being slightly the larger; the first joint is broad and 
as long as all the remaining joints, the carpus is produced to 
about the middle of the propodos; dactylus rather long and 
slender. 
The pereeopoda are unusually long and slender for this 
genus ; the first and second are about as long as the fifth, the 
dactyli long, slender, and slightly curved; the third and 
* Since the above description was written, Mons. Cheyreux has 
described the species under the above name in the ‘ Resultats des Cam- 
pagnes scientifiques de l’Hirondelle,’ fasc. xvi. 1900, p. 143, pl. xvii. 
fig. 2. The ‘ Oceana’ specimens, however, differ in the form of the telson, 
which is bluntly triangular. The palp of the first maxillee is also im- 
perfectly figured, being well developed, with a truncate and spinous 
terminal margin, The inner plate is armed at the end with strong teeth 
and sete, much as in Hyperiella, Boyallius, as figured by Stebbing under 
H, dilatata (Chall. Amph. pl. clxxi.). From this genus it differs only in 
being more laterally compressed. Chevreux’s two specimens were taken 
in lat. 47° 38’ N., long. 22° 14' W., in 1300 fath., and lat. 47° 43’ N., 
long. 19° 30° W., in 781 fath,, both in Sept. 1888. 
