COPEPODS GATHERED BY ALBATROSS—WILSON 287 
Allotype male—U.S.N.M. No. 74128; station 5185, latitude 
10°05’45”" N., longitude 122°18’30”’ E., between Panay and Negros. 
Remarks.—In his description of the female Sars noted the similarity 
of the two species aequalis and giesbrechti but decided they were dis- 
tinct species. As the Albatross plankton contained males of both 
these species, Sars’ contention is proved to be correct. 
PHYLLOPUS BIDENTATUS Brady 
Phyllopus bidentatus Brapy, Voyage of H. M. S. Challenger, Zool., vol. 8, pt. 23, 
Copepoda, p. 78, pl. 5, figs. 7-16, 1883. 
Stations 2; 26; 4609; 4663-4665; 4676; 4679; 4683; 4685; 4687; 
4695; 4703; 4705; 4717; 4719; 4722; 4740; 5185. Identified by Sars 
at 18 of these 19 Albatross stations but not appearing in the Monaco 
plankton. Both sexes were found in the Siboga plankton and were 
described by Scott. 
PHYLLOPUS GIESBRECHTI A. Scott 
PLATE 27, FIGURES 397-399 
Phyllopus giesbrechti A. Scott, Copepoda of the Siboga-Expedition, monogr. 29a, 
pt. 1, p. 149, pl. 46, figs. 1-6, 1909. 
Station 5185. This species was established by A. Scott in the Siboga 
plankton upon three females from the Banda Sea. He considered 
them specifically distinct from bidentatus established by Brady in the 
Challenger report. As the species does not appear in any of the other 
lists, these Albatross specimens constitute the first record since the 
original discovery. Better than that, they include the male sex as 
well as the female and so permit the completion of the specific diag- 
nosis, the male being described here for the first time. 
Female—Scott fully described and figured the female, citing the 
following distinguishing characters: The posterior corners of the 
metasome are practically symmetrical and do not reach the center of 
the genital segment. In a lateral view these corners are narrowly 
rounded and not pointed. The genital segment is longer than the 
first two abdominal segments combined and the caudal rami are twice 
aslongas wide. Total length 2.80 mm. 
Male.—Metasome elliptical, a little more than twice as long as wide 
and narrowed more posteriorly than anteriorly. Posterior corners 
symmetrical, the terminal spines curved inward, with a distinct sinus 
at the base on the inside, and overlapping the genital segment but little. 
Urosome 5-segmented, two-fifths as long as the metasome, and nearly 
uniform in width. Genital segment with parallel sides and a little 
longer than any of the other segments. First three abdominal seg- 
