6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
with one medial and eight distal bristles; epipodial appendage repre- 
sented by two short bristles. Second joint of exopodite twice as 
broad as long; distal margin bears 17 bristles, 4 with long, thin hairs, 
remainder with one or two wreaths of stiff hairs; medial surface with 
fine hairs; unlike others in genus, joint not produced posteriorly. 
Seventh limb (fig. 4&): Cleaning bristles: five in distal group, three 
dorsally, two ventrally; two (?) proximal bristles; each bristle with 
three or four bells; distal surface with short, closely spaced hairs. 
Terminal comb: simple distal tooth with three or four teeth on either 
side; these teeth have secondary teeth at base. Terminal pegs: two, 
one or both with short, marginal spines. 
Furea (figs. 4r, @): Each lamella has 13 claws: primary claws 
number 1, 2, 7, 12; secondary claws 8, 4, 5, 6, 8,9, 10, 11,13. Primary 
claws 1 and 2 separated from lamella, 7 and 12 joined to lamella; 
secondary claws all separated from lamella. Primary claws decrease 
in length proximally on lamella; claw 12 unusually broad at base. 
Secondary claws 3, 4, 5, 6 about same length, shorter than claw 7, 
longer than claw 8; claws 8, 9, 10, 11 decrease in size proximally. 
Primary claw 12 shorter than secondary claw 11, longer than claw 13. 
Lamella near basis of claws 1 and 2 bears cluster of long hairs. 
Claw number 1, right lamella: Posterolateral margin has row of 
about 24 teeth arranged in sets of two to four; teeth at distal part of 
claw generally shorter than teeth at midclaw. Central portion of 
medial surface bears two large teeth followed by about eight smaller 
teeth. Claw number 1, left lamella: posteromedial margin has row 
of about 24 teeth similar to row on posterolateral margin of claw 
number 1 of right lamella; similar row of about 29 teeth on postero- 
lateral margin. Primary claws 2 and 7 have two rows of teeth, claw 
12 has single row. Secondary claws: broad base; spines along anterior 
and posterior margins become progressively finer and longer on distal 
half. 
Eyes: Medial eye with brown pigment in preserved material. 
Lateral eyes absent. 
Frontal organ (fig. 44): Two jointed, with suture proximal to middle; 
construction with faint suture, near proximal end; tip rounded, with- 
out hairs. 
Upper lip (figs. 41-x): Small, helmet shaped, with small, unpaired 
conical process on anterior part; lip and process bear hairs. Irregular 
protuberances occur between upper lip and frontal organ. 
Eggs: Specimen contained about 10 oval eggs. 
DESCRIPTION OF MALE.—Shell (figs. 5-7): Oval in lateral view with 
greatest beight near middle, more elongate than shell of female 
(figs. 5A-E). Prominent rostrum and broad rostral incisure similar 
to female. Rostral anterior margin and shell anteroventral margin 
