STALK-EYED CRUSTACEA 251 



rounded on the outside, and spinous along the inner edge 

 and on the anterior edge beneath; the hand is broad, 

 compressed, spinous on the superior margin and on the 

 inside ; the inferior margin is granulous, and the outer side 

 is smooth; the fingers are high and compressed, their 

 tips incurved, and the inner edges shghtly separated in 

 the middle, and armed with small, irregular teeth except 

 at their tips, which are slightly spoon-shaped, with the 

 edges horny, continuous, and sharp. The walking legs 

 are smooth and naked above, but all the segments in the 

 first three pairs, except the basal ones, are thickly 'clothed 

 beneath and on the anterior side with very long coarse 

 hair. Those of the anterior pair are longer than the 

 others, and those of the posterior pair are much shorter 

 than the others, and but slightly hairy. The terminal 

 joint of the first two pairs are very long and stout, 

 slightly curved downward, their extremities compressed 

 vertically and five-sided, with the angles sharp ; those of 

 the third pair are much shorter, and curved backward as 

 well as downward ; those of the posterior pair are still 

 shorter, strongly curved backward and six-sided, the 

 superior side being much broader than the others. 



The sternum is narrow, very convex in an antero- 

 posterior direction, and the depression for the lodgment 

 of the abdomen is broad, very deep, and extends quite to 

 the base of the external maxilHpedes. The male abdomen 

 is broadest at the third segment ; the second segment is 

 very small, and the two segments which precede it are 

 completely coalesced. The appendages of the first 

 segment are triquetal, very stout, and extend to the 

 extremity of the last joint but one. The appendages of 

 the second segment are very small, extending scarcely 

 beyond the third segment. In the female the abdomen 

 is broadest at about the centre of the fifth segment ; the 



