158 U.S. NATIONAL MUSEUM BULLETIN 236 



basal seta. Basipodite short, cylindrical, with 2 setae. Endopodite 

 unsegmented, with 6 setae, exopodite absent. 



Maxillule (fig. 58d) with strongly developed arthrite, obscuring 

 structm-e of rest of maxillule. There is apparently a well-developed 

 coxal endite, bearing 3 strong setae; a small basal endite, bearing 

 3 short setae; a small, imsegmented endopodite with 6 setae; and a 

 small exopodite with 2 strong setae. No trace of epipodite; teeth 

 of arthrite strong and curiously shaped. 



Maxilla (fig. 58e) with scarcely indicated praecoxal endite, bearing 

 2 setae. Coxa with 2 endites (the more proximal may belong to 

 praecoxa as no sharp line divides praecoxa and coxa); proximal 

 endite with 2 setae; distal (larger) endite with 2 short spines and a 

 seta. Basal endite well developed, contiguous with strong, curved 

 spine. A much smaller spine occurs at the fusion of spine and endite, 

 where a small endopodite also inserts, carrying 3 thin setae and 1 

 slightly larger seta. The figure given here actually represents the 

 male maxilla because in my preparation of the female maxilla, the 

 latter was in an unfavorable position. 



Maxillipede (fig. 58/) chelate, coxa with 2 apical setae, basis slightly 

 swoUen, spinulose along internal margm, at middle of that margin 

 with fine seta. Endopodite shaped as curved digit, composed of 

 2 fused seginents, slightly shorter than basis. 2 additional setae 

 occur on the endopodite near the place of fusion of both segments. 



Leg 1 (fig. 59a) with 3-segmented exopodite and 2-segmented 

 endopodite. Basis well developed, with strong spine at external 

 and internal borders; that at internal border placed on a conspicuous 

 socle. 2nd exopodal segment 3 times as long as wide, with fine 

 internal seta. 3rd exopodal segment small, with total of 4 appendages. 

 1st endopodal segment styliform, longer than whole exopodite, with 

 internal seta slightly above middle of internal margin. 2nd endopodal 

 segment small, bearing 2 cui'ved, sabre-shaped claws of very unequal 

 size. 



The particulars of legs 2 to 4 appear from figures 59b-d; the setal 

 formula is: 



leg 2 

 legs 



leg 4 



On some of the endopodal segments there is a curious pattern of 

 polygonal fields, apparently representing muscular insertions or 

 glands. 



5th feet big, foliaceous, forming, with ventral part of genital somite, 

 a marsupium containing a ball of eggs. The exopodite of leg 5 

 reaches as far backward as halfway along the 3rd abdominal somite. 



