210 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
4664; 4667; 4668; 4671; 4673; 4676; 4700; 4713; 4719; 4721; 4722; 
4757; 4785; Fiji Islands. Although the species was found at so many 
stations, it was not at all abundant, two or three specimens at a station 
being the usual number. 
Female.—Metasome elongate and narrow; head fused with the first 
segment into a cephalothorax twice as long as the rest of the metasome 
and the urosome combined. The rest of the thorax narrowed regu- 
larly backward, with the posterior corners smoothly rounded without 
spines. Forehead triangular, the apex sharp but without a spine; 
rostrum removed considerably from the apex, the filaments very 
slender and curved like parenthesis marks. Fourth and fifth seg- 
ments fused on the ventral surface but separated dorsally and ele- 
vated considerably above the genital segment. Urosome less than 
one-eighth as long as the metasome and 4-segmented ; genital segment 
longer than wide, the sides slightly convex and the ventral surface 
protruding a little. Abdomen 3-segmented, the segments about the 
same length and much wider than long. Caudal rami at the corners 
of the anal segment, twice as long as wide and somewhat divergent. 
The second inner seta on the left ramus is greatly elongated, as in 
nearly all the other species of this genus. 
First antennae reaching four segments beyond the tips of the 
caudal rami, with a stout seta on the penultimate and antepenultimate 
segments and all the other setae filiform. The two stout setae are 
plumose and often highly colored and reach to the tip of the elongated 
seta on the left caudal ramus. The exopod of the second antenna is 
7-segmented, each of the two basal segments with two setae, the next 
four with one apiece and the end segment with three terminal setae, 
the two inner ones much elongated. Mandible palp twice the length 
of the chewing blade and biramose, the outer ramus with two excep- 
tionally long setae. The tooth at each end of the chewing blade is 
acute, the intervening ones are laminate and truncated. The maxil- 
liped is 8-segmented, the segments with 6: 3: 2:3: 4:3: 3: 2 setae re- 
spectively, beginning at the base. The exopod of the first leg has 
three segments, the two basal ones without outer spines, the end seg- 
ment with one at the distal corner; the endopod is 2-segmented. The 
rami of the second, third, and fourth legs are each 3-segmented, the 
end segment of the exopod with two outer spines and one at the distal 
corner; the fifth legs are lacking. Total length 5.65 mm. Metasome 
4.64 mm. long, 0.92 mm. wide. 
Male.——Body similar to that of the female except that the urosome 
is 5-segmented and there are five pairs of legs instead of four. These 
fifth legs are uniramose and 4-segmented, the two basal segments 
nearly twice the width of the two terminal ones, the end segment 
