COPEPODS GATHERED BY ALBATROSS—WILSON 325 
Albatross stations and from 34 Monaco stations; reported by Farran 
(1929, p. 248) from the Antarctic in two deep hauls, 1,000 and 1,750 
fathoms; and from the Indian Ocean by Sewell (1929, p. 205). Both 
sexes are fully described in the Monaco report. 
SCAPHOCALANUS ANGULIFRONS Sars 
PLATE 33, Figures 505, 506 
Scaphocalanus angulifrons Sars, Bull. Institut Océanogr. Monaco, No. 377, p. 8, 
1920; Rés. camp. sci. Albert de Monaco, No. 69, p. 170, pl. 48, figs. 1-14, 1925. 
Station 5185. Twenty-two females and one male were obtained at 
this station between Panay and Negros, Philippine Islands, in a tow at 
a depth of 550 fathoms. The species was founded upon a single female 
from the temperate Atlantic, and the Albatross specimens are the first 
taken since that time. The female was fully described and figured in 
the Monaco plankton; the description of the new male here given 
completes the diagnosis of the species and substantiates its validity. 
Male.—Metasome elongate-elliptical, considerably narrowed at both 
ends; head fused with the first segment and provided with a crest as 
well defined as in the female. Fourth and fifth segments separated, 
the latter produced into small round knobs on each side of the genital! 
segment. Urosome two-fifths as long and a quarter as wide as the 
metasome and 5-segmented, the segments diminishing in length and 
width backward, anal segment very short. Caudal rami almost circu- 
lar in dorsal outline and about twice as long as the anal segment, the 
five setae attached around two-thirds of the circle. 
The first antennae are very slender and reach the distal end of the 
first abdominal segment. The exopod of the seond antenna is but lit- 
tle longer than the endopod, and its second segment is one-half longer 
than the end segment, with very long and slender setae. Mouth parts 
like those of the female. Endopods of the first three pairs of legs with 
rows of spines on the ventral surface, but no spines on the fourth endo- 
pod. Fifth legs of the same general form as in affinis but differing in 
details. The endopod of the right fifth leg is laminate and reaches the 
middle of the second segment of the exopod, with a rounded barb on 
the ventral margin. The first segment of the exopod is enlarged at the 
distal end and projects beyond the attachment of the second segment 
as an angular process. The second segment is also enlarged at the 
distal end on the inner margin, while the third segment is straight and 
spiniform. The second basipod of the left leg is longer than the first 
and reaches the center of the first exopod segment of the right leg. 
The two rami of this leg are subequal, one ending in an ovate knob, the 
other in a laminate seta. Total length 5.11 mm. Metsome 3.69 mm. 
long, 1.50 mm. wide. 
