COPEPODS GATHERED BY ALBATROSS—WILSON 347 
bluntly pointed, and inclined away from the other teeth. The latter 
are four in number and close together and suggest the fingers of a 
hand with the large tooth a swollen thumb. The palp has a long basi- 
pod and two short rami each 1-segmented and armed with three setae. 
The basal segment of the second maxilla has a large rounded process 
armed with seven setae at its distal posterior corner, and the end seg- 
ment has three much longer setae. The maxilliped is very stout and 
5-segmented, each segment armed with a long curved seta set with 
small spines along its concave margin. The fifth legs are symmetrical, 
neither one being enlarged, and the three spines at the tip of each 
leg are smaller and less divergent than those figured by Scott. Total 
length 2.25 mm. 
Male.—Similar in general appearance to the female, but the head 
and posterior metasome are narrower and the urosome is 5-segmented. 
The caudal rami are the same size, perfectly symmetrical, and six times 
as long as wide, and the second inner seta on each is elongate. The 
left fifth leg is much longer than the right and reaches back to the 
center of the caudalrami. ‘Total length 2.15 mm. 
TORTANUS RECTICAUDA (Giesbrecht) 
Corynura recticauda GIESBRECHT, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 2, 
p. 26, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 529, 531, 
pl. 31, figs. 1, 4, 8, 11, 14, 16; pl. 42, figs. 35, 36, 39, 1892. 
Station 5415; Iloilo Straits, Philippine Islands. [Irom the first of 
these localities, between Cebu and Bohol, one female was identified 
and preserved by Dr. Wilson (U.S.N.M. No. 78844).—W. L. S.] 
Genus UNDEUCHAETA Giesbrecht, 1888 
UNDEUCHAETA MAJOR Giesbrecht 
PLATE 35, FIGURE 541 
Undeuchaeta major Giesprecut, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, 
p. 336, 1888; Fauna und Flora des Golfes yon Neapel, monogr. 19, pp. 227, 
232, pl. 37, figs. 56, 57, 59, 1892. 
Stations 2; 32; 3382; 3799; 4427; 4571; 4574; 4679; 4681; 4687; 
4691; 4715; 4716; 4722; 4732; 4740; 4757; 4926; 5120; 5155; 5185; 
5293; 5997; 5228; 5231; 5233; 5246; 5268; 52875 5319; 54387; 5451; 
5595. Present in the Monaco, Siboga, and Carnegie planktons. The 
species is distinguished in the female by a frontal crest and the sharp 
. posterior corners of the metasome, and in the male by the enlarged 
barblike tip of the right endopod of the fifth legs. Figure 541 shows 
the fifth legs of mature and immature males. 
