302 EGIDA. 
ISOPODA. wEGIDA. 
NORMALIA. 
Genus—CONILERA. (Leach) 
Generic character. Subcylindrical, pleon as wide as the ter- 
minal segments of the pereion, four anterior pairs of legs 
strong, three hind pairs slender; maxillipeds with the three 
terminal joints broad and flat, outer pleopoda divided into two 
nearly equal-sized joints. 
THE very short characters given by Leach of this genus, 
and by Montagu of the only known species, having been 
insufficient to afford any true idea of the relations of the 
type, we are happy in being able to furnish detailed 
figures of the chief external organs. 
The animal is nearly cylindrical in form, with the sides 
of the body nearly parallel, the head semi-oval, deeply 
immersed in the first large segment of the body, of 
which the anterior lateral angles are considerably ad- 
vanced ; the tail is composed of four nearly equal-sized, 
short basal segments (the first more or less concealed 
beneath the preceding), followed by the fifth, which is 
contracted at the sides, whilst the sixth is elongate- 
triangular. 
The upper antennz are short, with the basal joints 
subcylindrical ; the second pair are about twice the length 
of the preceding, separated at the base by a narrow 
ridge; the labrum is transverse, rounded at the anterior 
angles. The mandibles are tridentate at the tips, with a 
slender serrated inner movable lobe, and a three-jointed 
palpiform appendage. The maxillipedes or foot-jaws are 
