148 GAMMARID^E. 



short, sharp, and slightly curved. The four anterior coxae 

 are large, quite as deep as the segments of the body to 

 which they are attached respectively, and each has the 

 inferior margin fringed with a row of equidistant, soli- 

 tary, short, plumose spines. The first pair of legs are 

 slender, tolerably long, having the metacarpus and wrist 

 fringed upon the inferior side with a few plumose cilia ; 

 hand long, narrow, tapering ; palm two-thirds the length 

 of the hand, exceedingly oblique, defined by a small 

 obtuse denticle, and fringed with a row of equidistant 

 fine cilia : finger long and slender, as long as the palm, 

 and nearly straight. The second pair of legs resemble 

 the first, but are scarcely as large, and the palm is 

 slightly waved, and not so distinctly defined, and the 

 finger appears to be scarcely as long as the palm. The 

 third and fourth pair of feet are slender, fringed with 

 cilia, both plumose and simple, having the hand straight 

 and unarmed ; the finger as long as the hand, straight, 

 stout, and furnished with a nail at the extremity ; on the 

 distal extremity of the hand, on each side of the finger, 

 stands a moveable spine, as stout and long as the finger, 

 apparently having the power of being compressed to- 

 gether, each fitting into a lateral groove in the finger, 

 thus forming a feeble and insufficient nipper. The fifth 

 pair of legs are long, slender, and plumose, the coxa is 

 short, and the thigh tapering, with a posterior concave 

 margin to the distal extremity ; all the joints after the 

 knee are subequal in length ; the finger is quite straight. 

 The sixth pair of legs resemble the preceding in form, 

 but are nearly half as long again ; the joints after the 

 knee are subequally long and slightly plumose; the 

 finger is longer than the hand, straight and sty li form. 

 The seventh pair of legs are very short, reaching only to 

 the middle of the metacarpal joint of the sixth pair of 



