COPEPODS GATHERED BY ALBATROSS—WILSON 243 
Urosome, including the caudal rami, about a fourth as long as the 
metasome and 4-segmented, the genital segment the longest and the 
anal segment the shortest, all the same width. Caudal rami longer 
than the anal segment, twice as long as wide and slightly curved like 
parenthesis marks. 
First antennae just reaching the spines at the corners of the meta- 
some and quite slender; exopod of second antenna two-thirds as long 
as the endopod. The basal segment of the endopod is three times as 
long as the end segment and the latter has 11 setae. The first four 
pairs of legs have 3-segmented exopods and 2-segmented endopods. 
The fifth pair of legs is shown in figure 343, the left leg a little longer 
than the right. The left exopod is four times as long as the endopod, 
with two minute spines at the tip and another still smaller on the outer 
margin below the center. The right exopod is only three and a half 
times as long as the endopod but otherwise like the left. The endopods 
are equal in size, bluntly rounded at their tips, and entirely unarmed. 
Total length 3.15 mm., greatest width nearly 1 mm. 
Neotype female—U.S.N.M. No. 74118. 
Remarks.—These copepods are the same size as Dana’s specimens, 
both metasome and urosome are similarly divided, and the ventral 
eye beneath the rostrum is just as prominent and bright red. Dana 
adds, “Color blue, especially anteriorly, yellowish posterly,” but of 
course the color has long since disappeared. Thus another of Dana’s 
pioneer copepod species after an interval of about a hundred years has 
been rediscovered and validated. 
LABIDOCERA ALBATROSSI, new species 
PLATE 23, Ficures 344, 345 
Station 3878. Four females were found in a surface tow at this 
station south of Lanai, one of the Hawaiian Islands. 
Female.——Metasome elliptical, two and a third times as long as 
wide, and narrowed a little at each end. Head separated from the 
first segment and without lateral hooks; dorsal eyes small and widely 
separated, ventral eye also small and inconspicuous. Fourth and fifth 
segments fused with rounded posterior corners, the triangular spines 
not at the corners but on the posterior margin and depressed beneath 
the dorsal surface. Urosome perfectly symmetrical, one-fourth as wide 
and, excluding the caudal rami, less than one-sixth as long as the meta- 
some. It is 3-segmented, the segments diminishing in length back- 
ward, the first two the same width, the anal segment a trifle wider 
’ and obliquely truncated at the corners for the attachment of the caudal 
rami. The latter are widely separated and curved like parenthesis 
marks, 
843804—50——_8 
