84 BULLETIN OF THE 



lobe twice and a half as long as broad and rounded at tlie tip. The endopod 

 is composed of three very distinct segments : a narrow basal one reaching a 

 little by the protopod and with a slight expansion of the inner edge armed 

 with slender spines, while the rest of the inner margin and the distal part of 

 the outer are clothed with hairs ; a second segment about half as long as the 

 first, but expanded in the middle so as to be somewhat elliptical and nearly half 

 as broad as long, with very long plumose setae on the outer edge and smaller and 

 more numerous ones on the inner ; and a small terminal segment about a third 

 as long as the second, half as broad as long, and edged with small seta: or hairs. 

 The exopod is longer even than the endopod, the proximal two-thirds or three- 

 fourths of its length wider than the first segment of the endopod, but the distal 

 portion rather suddenly narrowed, multiarticulate, and flagelliform. The lamel- 

 liform branchial epipod is as large as the endopod and the anterior portion a 

 little smaller than the posterior. 



The endopod of the second maxilliped (Fig. 6) is approximately uniform in 

 breadth throughout, except the dactylus : the ischium is broader than long ; 

 the merus is about as long as the three distal segments taken together, and 

 about three and a half times as long as broad ; the carpus and propodus are 

 subequal in length and each a little longer than wide ; the dactylus is. a little 

 shorter than the propodus, only half as wide as long, and narrowed to a some- 

 what triangular tip, which is armed with one or more curved spines ; the 

 edges of all the segments are more or less hairy or setigerous. The exopod is 

 slender, regularly tapered, considerably longer than the endopod, and its distal 

 half multiarticulate, flagelliform, and furnished with long plumose setse, while 

 the proximal part is unsegmented and furnished with short hairs or setae. 

 The epipod is short, nearly orbicular, and bears a short and dense dendro- 

 branchia. 



The endopod of the external maxillipeds is unfortunately wanting. The 

 exopod is like that of the second except that it is a little smaller ; the epipod is 

 about as long as in the second, but narrow, ovate, and bears a dendrobranchia 

 nearly as long as itself. 



The first thoracic legs are slender and reach scarcely by the bases of the 

 antennal scales : the merus is slightly longer than the ischium, and both these 

 segments are strongly compressed vertically and ciliated along the inner edges ; 

 the carpus is slightly compressed, about as wide as the merus, and ciliated like 

 it ; the chela is scarcely as long as the carpus, and no stouter, and the digits 

 are about as long as the basal portion, slender, very slightly curved at the tips, 

 and the prehensile edges ciliated. 



The second legs are much like the first, but a little more slender and con- 

 siderably longer, reaching to the tips of the peduncles of the antennae ; the 

 merus and carpus are subecpial in length, and the chela is considerably shorter 

 than the carpus. 



The most of the endopods of the third, fourth, and fifth pairs of legs are 

 wanting except a detached portion of, apparently, one of the fourth pair. This 

 fragment is longer than the carapax and consists of a slender ischium and 



