EISCLA.DUS. 
411 
AMP HIP OD A. 
NATATORIA. 
GA MM A RIDES. 
Genus— EISCLADUS.* 
Generic character. Slightly compressed. Eyes on a pro- 
minently-advanced lobe between the superior and inferior 
antennae. Superior antennae without a secondary appendage. 
Gnathopoda subchelate. Coxae of the third pair of pereiopoda 
having the anterior lobe as deep as the coxae of the second. 
Posterior pair of pleopoda biramous, rami unequal. Telson 
squamiform, single. 
This genus appears to approximate somewhat closely 
to the description given of Melita by Dana, differing only 
in the important feature of size of the coxae of the fifth 
pair of legs which Dana says are “ much shorter than 
those of the fourth.” 
The genus, moreover, has a close affinity with that of 
Amphithoe , from which it differs only in the form of the 
last pair of caudal appendages which in this genus 
resemble those of Melita. 
The eyes are situated on a lobe prominently advanced 
between the superior and inferior antennae. The su- 
perior antennae have not a secondary appendage, and 
are a little longer than the inferior. The hands are 
subequal and subchelate. The coxae of the fifth pair 
of legs are as deep as those of the fourth. The last 
pair of caudal appendages are unequally biramous, one 
branch being very minute ; and the middle tail-piece is 
squamiform, and consists of a single plate. 
* E is one, zXoibos branch, in allusion to the structure of the posterior pair 
of pleopoda. 
