COPEPODS GATHERED BY ALBATROSS—WILSON 187 
Island, Galapagos. Established by Dana as the type of a new genus, 
Catopia, it was transferred to the present genus by Brady in the 
Challenger plankton and appears in all the other lists except the 
Monaco one. It is the most widely distributed species of the genus 
and often occurs in large numbers. 
CENTROPAGES GRACILIS (Dana) 
PLATE 22, Figure 309 
Cyclopsina gracilis DANA, Proe. Amer. Acad. Arts and Sci., vol. 2, p. 25, 1849. 
Stations 3829; 5196; 5246. Originally described by Dana from the 
northern Pacific and later placed by him in the genus Hemicalanus 
(Dana, 1853, p. 1108; 1855, pl. 78, fig. 12 a, b); transferred to the 
present genus by Giesbrecht. It is included in the Siboga plankton 
and in Rose’s portion of the Monaco plankton but not in the others. 
Four males obtained at station 5246 correspond fully to Giesbrecht’s 
figures of this species. The fifth legs of one of these specimens are 
shown in figure 309. 
CENTROPAGES HAMATUS (Lilljeborg) 
Ichthyophorba hamata LitugEsorc, De Crustaceis ex ordinibus tribus: Cladocera, 
Ostracoda et Copepoda, in Scania occurrentibus, p. 185, pl. 21, figs. 1-5, 7-9; 
pl. 26, figs. 9-12, 1853. 
Fiji Islands. Thirty-two specimens, including both sexes, were 
taken in a surface tow at this unnumbered station. This species was 
found at 26 stations in the Monaco plankton and at 7 in the Carnegie 
plankton, but was not present in the other lists. 
CENTROPAGES KR@YERI Giesbrecht 
Centropages Krdéyeri GIirSBRECHT, Fauna und Flora des Golfes von Neapel, 
monogr. 19, pp. 303, 320, pl. 17, figs. 24, 25, 40, 47; pl. 18, fig. 10; pl. 38, 
figs. 6, 8, 11, 14, 1892. 
Stations 4588; 5262; 53840. Two females were obtained in a sur- 
face tow at the first of these stations off the southwest coast of Mexico 
and a single female at each of the other stations in the Philippines. 
The species was present at three stations in the Monaco plankton 
but did not appear in the other lists. It was reported from the Pacific 
areas by Thompson and Scott (1903, p. 247) and by Sewell (1982, 
p. 230). 
CENTROPAGES ORSINII Giesbrecht 
Centropages orsinii GIESBRECHT, Atti Accad Lincei, Rome, ser. 4, vol. 5, sem. 1, 
p. 811, 1889; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 305, 
321, pl. 17, figs. 35, 36, 41, 42; pl. 18, figs. 2, 14, 23; pl. 38, figs. 12, 19, 1892. 
Fiji and Marshall Islands. This species did not appear in the 
