COPEPODS GATHERED BY ALBATROSS—WILSON 307 
over the base of the rostrum. Fourth and fifth segments fused, 
squarely truncated posteriorly and produced at the corners into acute 
triangular spines overlapping the genital segment. Urosome less 
than a third as long as the metasome and three-eighths as wide, very 
asymmetrical and 2-segmented. Genital segment twisted to the right, 
widened posteriorly, protuberant ventrally, with two small blunt 
spines at the tip of the protuberance and covered with a stiff chitinous 
carapace. At the posterior margin of the genital segment a stout 
fingerlike process is attached to the dorsal surface of the carapace, sug- 
gesting the specific name. This finger points diagonally upward and 
backward and reaches the posterior margin of the caudal rami. It 
appears to belong exclusively to the carapace and is not connected 
with the segment itself; the ventral protuberance on the contrary is 
part of the segment and has no connection with the carapace. The 
single abdominal segment is much shorter than the genital segment 
and is incised at the center of its posterior margin. The caudal rami 
are kidney-shaped and extend diagonally along the lateral margins 
of the abdomen, each with five very short setae. 
First antennae rather slender and very short, reaching only to the 
center of the second thoracic segment. In the second antennae the 
exopod is slender and much shorter than the endopod; the mouth parts 
and first four pairs of legs do not show specific characters. In the 
fifth legs the exopod is four times as long as the endopod, with three 
small spines on the outer margin, a large terminal spine and a larger 
one still on the inner margin somewhat back of the tip. The distal 
third of the endopod is bifurcate, the branches acuminate. There is a 
protruding knob on the basipod outside the attachment of the exo- 
pod, and the base of the exopod is abruptly narrowed to fit around it. 
Total length 4.50 mm. Greatest breadth 1.40 mm. 
Types —U.S.N.M. No. 74139; Station 38980; latitude 21°23’ N., 
longitude 158°19’ W., Hawaiian Islands. 
Remarks.—The most conspicuous specific characters are the finger- 
like processes on the carapace of the genital segment and the kidney- 
shaped caudal rami. 
PONTELLOPSIS GLOBOSA, new species 
PLATE 31, Fiaures 466-469 
Station 5223. Five females were found in a surface tow at this sta- 
tion between Marinduque and Luzon Islands in the Philippines. 
Female.—Metasome stoutly elliptical, two and a half times as long 
as wide; head broadly rounded in front with a median projection over 
the base of the rostrum. Fourth and fifth segments fused with stout 
spines at the posterior corners, which reach to the center of the first 
abdominal segment. Urosome short and symmetrical, a third as long 
843804—50——_12 
