174 GAMMA RTDvE. 



the superior pair, and have the peduncle more conspi- 

 cuous than that of the superior; only three joints of the 

 peduncle are visible beyond the projecting lateral wall 

 of the head, these are subequal, and reach a little 

 beyond the extremity of the peduncle of the superior 

 pair ; and the flagellum is scarcely longer than the 

 peduncle. The coxae are not very deep ; and the first 

 pair of legs have the hand oval, with the palm oblique ; 

 the tip of the infero-anterior process of the wrist ex- 

 tends a little beyond the inferior angle of the hand, 

 and forms a point, against which the apex of the finger 

 impinges, where it closes on the palm. The second pair 

 of legs are longer than the first, and have the hand less 

 robust, it is long and slender, the margins being pa- 

 rallel, and the inferior angle produced anteriorly in a 

 straight line, terminating in a sharply -pointed curve ; 

 the finger is narrow, sharp, and slightly curved, lying in 

 a line continuous with the hand, and impinging against 

 the inferior process, or thumb, only near the apex, or 

 where the margins meet ; the tips of the finger and thumb 

 then cross each other. The wrist is short and narrow, and 

 the anterior extremity is inferiorly produced into a long 

 narrow process, that reaches beyond the apex of the 

 claw, where it is slightly dilated or lobed, and tipped 

 with a few hairs. The two next pair of legs are similar, 

 and of the same length, they are longer and a little 

 stouter than the second, with the hands dilated anteriorly, 

 similar to those in IVestwoodilla and Monoculodes, and 

 having the anterior distal extremity covered with a thick 

 brush of hair ; the fingers are short, strong, and directed 

 backwards. The two succeeding pairs of legs are also 

 similar to each other : they have the thighs oval, the meta- 

 carpal joints posteriorly dilated and inferiorly produced ; 

 the wrists and hands of nearly the same length, and fringed 



