234 U.S. NATIONAL MUSEUM BULLETIN 236 



preceding somites, anal plate very broadly rounded, nude. Spinules 

 border insertion of furcal rami on anal somite. 



Furcal rami short, 4 times as mde as long, widely separated, parallel. 

 There are 5 marginal setae and 1 appendicular seta on each ramus. 

 Seta 1 and appendicular seta fine and short, seta 4 spiniform, fairly 

 long, seta 5 very small, scarcely visible. Setae 2 and 3 lengthened 

 and thickened, especially the 2nd; both swollen at base, swollen part 

 long. Some spinules at internal border of each ramus. Appendicular 

 seta insert at extreme internal corner of each ramus. 



Antennules 8-segmented, short, half length of cephalothorax. 4th 

 segment short, with large conical process bearing aesthetasc and 2 

 setae. Setation represented in figure 93/. 



Antenna (fig. Q3g) with allobasis and 3-segmented exopodite. 1 

 seta occurs on allobasis and 3 at 3rd exopodal segment. No setae 

 were observed on basal 2 exopodal segments; they may have been 

 removed by dissection. 



Mandible (fig. 9Sh) with weU-developed praecoxal cutting edge, 

 bearing 5 composite teeth. Palp small, with slender basipodite, 

 bearing 3 setae. Endopodite with 5 setae, segmentation indistinct. 

 Exopodite unsegmented, with 2 setae. 



Maxillule damaged in my dissection. 



Maxilla with 1 praecoxal, 2 coxal, and 1 basal endite. Praecoxal 

 and coxal endites each with 3 fine setae. Basal endite large, with 

 coalescent, strong spine, and 1 additional seta. Endopodite reduced, 

 represented by 3 setae. 



Maxillipede chelate, basis moderately swollen. Endopodite un- 

 segmented, curved, slightly shorter than basis. 



Leg 1 (fig. 93a) with strong internal and external spine on basis; 

 exopodite and endopodite 3-segmented. Exopodite and apex of 

 endopodal segment 1 reach same level, but exopodite inserting more 

 basally, with the result that it is longer, in fact, than 1st endopodal 

 segment. This segment 2}^ times as long as wide, internal and ex- 

 ternal borders spinulose, with fine internal, subapical seta. 2nd and 

 3rd endopodal segments of equal length, 3rd with 2 very unequal, 

 geniculate setae and fine seta. Details of legs 2 to 4 appear in figures 

 9Zb-d and the setal formula: 



Leg 5 with ovoid exopodite, slightly longer than baso-endopodite. 

 There are 5 exopodal, marginal setae; the size can best be judged 

 from figure 93e. Internal and external margins spinulose. Baso- 

 endopodite with 5 setae and some marginal spinules. 



