ANOMALOCERA. 
231 
pair (f. 1 c) is of moderate size, each composed of a 
stout basilar joint or plate, which at its extremity gives 
off two or three other flat joints or plates, all of which 
are provided with several long setae. The second pair 
(f. 1 d) is larger, formed of a tolerably strong basilar 
joint, which is lobed at its extremity, and a slender branch 
of five articulations. The lobes of the basilar joint, and 
the articulations of the slender branch, are all provided 
with several plumose setae of considerable length. The 
third pair (f. 1 e) is large, and strongly developed, and 
consists of two stout joints, which have on the inner edge 
several lobes, furnished with very long, plumose setae, 
directed forwards and upwards, so as to meet with the 
plumose setae of the antennules. 
The feet are five pairs in number. The first four 
pairs (f. 1 h) are all alike, and formed for swimming. 
They consist of a common joint at the base, divided into 
two articulations, and two longer stalks. The internal 
stalk is divided into two joints, and the external, which 
is the larger of the two, into three, all furnished with 
numerous setae. The fifth pair is different from the 
others, and from each other in the different sexes. In 
the female (f. 2 c) it is small, formed of a basilar joint 
of two articulations, and a smaller and more slender 
joint, of three articulations. At the base of the second 
basilar joint, on the inner side, a small, short branch 
springs, formed of one articulation. In the male, this 
pair of feet (f. I i) is large, composed of two stalks, both 
of which appear to spring from the body without a com- 
mon foot-stalk. The one is simple, consisting of three 
large joints, which terminate in two or three slender, 
styliform setae, while the other is terminated by a strong 
claw, or prehensile hand. 
The abdomen consists of four segments, the last of 
which gives off two caudal lamellae of considerable length, 
each provided with five rather short and plumose setae. 
These bodies seem adapted for assisting the animal in 
swimming. Length of animal about three lines. 
