334 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
exopod is 3-segmented, the segments diminishing in length and width 
distally, the end segment tipped with a bunch of setae. The endopod 
is 1-segmented, much longer than the exopod, swollen in the center, 
the terminal portion curved into a half circle tipped with an acute 
process. Totallength 1.55mm. Metasome 1 mm. long, 0.42 mm. wide. 
Allotype male.—U.S.N.M. No. 79939 (slide) ; station 5120, latitude 
18°45’30’’ N., longitude 120°30’15’”" E., west of Lubang, Philippine 
Islands. 
Remarks.—At first glance the male fifth legs described above would 
seem to warrant generic separation from the other species, but closer 
examination reveals that they are constructed on the same general 
plan as those of auropecten and minor, the differences being confined 
to details of structure. Since the females are undoubted species of 
the present genus and the males correspond in the details of the an- 
tennae, mouth parts, and first four pairs of legs, it does not appear 
advisable to try to erect a new genus for them. 
SCOLECITHRICELLA MINOR (Brady) 
PuatTe 34, FIGURE 525 
Scolecithria minor Brapy, Voyage of H. M. 8. Challenger, Zool., vol. 8, pt. 23, 
Copepoda, p. 58, pl. 16, figs. 15-16, pl. 18, figs. 1-5, 1883. 
Station 4759. Established by Brady in the Challenger plankton 
upon specimens from the southwestern Indian Ocean and placed in 
the genus Scolecithrix. Made the type of a new genus, Scolecithri- 
cella, by Sars (1902, p. 55) ; reported from one station in the Monaco 
plankton, and from both the Atlantic and Pacific in the Carnegie 
plankton. 
SCOLECITHRICELLA OVATA (Farran) 
PLATE 35, Fiecure 527 
Scolecithriv ovata FARRAN, Ann. Rept. Fisheries, Ireland, 1902-03, pt. 2, app. 2, 
p. 37, pl. 6, figs. 13-18; pl. 7, figs. 1-5, 1905. 
Station 2563. Established by Farran upon specimens from the 
northern Atlantic off the coast of Ireland; a single female was re- 
ported by Sars in the Monaco plankton and a few specimens at a 
northern Atlantic station in the Carnegie plankton. Three females 
were taken at this Albatross station off the coast of Delaware; thus 
the species remains confined to the Atlantic Ocean, and the adult 
male is unknown. As can be seen from the figure, the fifth legs of 
the female are peculiar in being 3-segmented and in the relative 
size and arrangement of the spines. 
[What other material Dr. Wilson may have had from this station 
cannot now be determined. Neither the original sample from which 
