166 
GAMMARIDJE. 
of the animal ; and have the last joint of the peduncle 
as long again as the preceding, and rather longer than 
the flagellum. The foot-jaws are tolerably robust, and 
terminate in a triangular hand, the broadest part being 
near the finger, where it forms a kind of palm, against 
which the finger, which is extremely curved, is capable 
of impinging. The first pair of legs are not very long, 
they have the metacarpus produced inferiorly to a sharp 
point ; and the wrist is considerably produced anteriorly, 
in the form of a plate, corresponding to the inferior 
margin of the hand ; the hand is oval, having a convex 
palm obliquely placed, and defined by a solitary, short, 
obtuse spine, — it is armed throughout its length with a 
number of short posteriorly-directed hook-like spines, 
which are flanked by several bunches of straight, un- 
even, lengthened hairs ; the finger is curved, sharp, and 
free from any armature. The second pair of legs are 
longer than the first, but are constructed upon the same 
type ; the wrist is anteriorly produced to a much greater 
length ; the hand is long and narrow, being nearly four 
times as long as broad ; the palm is short, slightly ob- 
lique, fringed with short, and a few long cilia, and 
defined by an obtuse rounded angle, beyond which the 
anterior extremity of the carpus advances ; the finger is 
short, curved, clean, and sharp. The coxae of the five 
anterior pairs of legs are as deep as the corresponding 
segments of the body. The third and fourth pairs of 
legs are formed upon the same type, and closely re- 
semble each other, and are remarkable for having the 
hands dilated upon the backs, where they are furnished 
with a thick brush of hair, a peculiarity which appears 
to belong to this genus. The fifth pair of legs are much 
longer than the two preceding pairs, — they have the coxa 
two-lobed, and as deep as the coxa of the preceding legs ; 
