COPEPODS GATHERED BY ALBATROSS—-WILSON 241 
Genus HETEROSTYLITES Sars, 1920 
HETEROSTYLITES LONGICORNIS (Giesbrecht) 
Heterochaeta longicornis GIESBRECHT, Atti Accad. Lincei, Rome, ser. 4, vol. 5, 
sem. 1, p. 812, 1889; Fauna und Flora des Golfes yon Neapel, monogr. 19, 
pp. 373, 383, pl. 20, figs. 14, 21, 25, 26; pl. 39, fig. 44, 1892. 
Stations 7; 15; 16; 2236; 4580; 4583; 4638; 4646; 4652; 4659; 4663; 
4667 ; 4673; 4700; 4707; 4715; 4719; 4722; 5120; 5129; 5185. Identi- 
fied by Sars from 14 of these Albatross stations and from 13 Monaco 
stations; also present in the Siboga and Carnegie planktons. The 
Siboga specimens were all taken in deep vertical hauls starting from 
750 to 1,500 meters below the surface, and the Carnegie specimens, 
except for one specimen taken in a 50-meter tow and another in a ver- 
{ical haul from 1,000 meters, were all captured in 100-meter horizontal 
tows. 
HETEROSTYLITES MAJOR (F. Dahl) 
Heterochaeta major ¥. DAHL, Verh. deutsch. zool. Ges., Miinchen, vol. 4, p. 79, 
1894b. 
Station 5185. Two females were obtained at this station between 
Panay and Negros Islands in the Philippines. Sars found it at five 
stations in the Monaco plankton and gave a complete description of 
the female in his report. Farran (1929, p. 267) reported a male and 
a female from the Antarctic in a vertical haul from 1,750 meters. 
Although this was the first male to be found, he gave no description 
or figures but simply said that it showed the usual sexual differences 
from the female. 
Genus ISOCHAETA Giesbrecht, 1889 
ISOCHAETA OVALIS Giesbrecht 
Isochaeta ovalis GiesprecHT, Atti Accad. Lincei, Rome, ser. 4, vol. 5, sem. 1, 
p. 812, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, p. 367, pl. 
29, figs. 15-17; pl. 38, figs. 33, 34, 1892. 
Station 4721. Identified by Sars from this station between the 
Galapagos and Paumotu Islands and not appearing in any of the 
plankton lists. Indeed, this is the first and only record since its orig- 
inal discovery in the tropical Pacific and it would seem to be a very 
rare species. The tow here was a vertical haul from 300 fathoms. 
Genus LABIDOCERA Lubbock, 1853 
LABIDOCERA ACUTA (Dana) 
PLATE 11, FiauReES 121, 122; PLATE 12, FiaureE 123 
Pontella acuta Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 30, 1849. 
Pontellina acuta Dana, United States Exploring Expedition, 1838-42 (Wilkes), 
vol. 14, pt. 2, Crustacea, p. 1150, 1853, pl. 80, fig. 12 a-c, 1855. 
