COPEPODS GATHERED BY ALBATROSS—WILSON 145 
and several meters long were employed. Three tows were made 
simultaneously at each station, one at the surface, one at a depth 
of 50 meters, and the third at a depth of 100 meters. The tows at 
successive stations were made at the same time of day by the same 
operator, using the same nets and the same methods. Furthermore, 
the temperature, salinity, density, and phosphates were recorded for 
every tow. This method makes the records especially useful for com- 
parison and furnishes valuable data for establishing the reactions of 
various copepod species to light, temperature, and salinity. 
SYSTEMATIC REFERENCES 
Since this is essentially a record of the copepod species found in 
the plankton and in no sense a systematic treatise, it seems preferable 
to arrange the species in alphabetical order without reference to 
families. The synonymy of the different species is so fully published 
in the Siboga and Monaco lists that there is no need for presenting 
it here [only the reference to the original description is given under 
each species name, except for species amplified by Dana, Giesbrecht, 
and Sars in their larger monographs (1853-1855, 1892, and 1925 re- 
spectively), to which works reference is also made]. 
Very nearly all the copepod species named in this paper may be 
found in one of the plankton lists just referred to. The systematic 
position and synonymy may be still further defined by reference to 
one of the following works: 
1892. GIESBRECHT, WILHELM. Systematik und Faunistik der pelagischen Cope- 
poden des Golfes von Neapel und der angrenzenden Meeresabschnitte. 
Fauna und Flora des Golfes von Neapel, monogr. 19. 
1911. WoLFENDEN, RICHARD Norris. Die marinen Copepoden: 2, Die pelagischen 
Copepoden der Westwinddrift und des stidlichen Eismeers, Mit Beschrei- 
bung mehrerer neuer Arten aus dem atlantischen Ozean. Deutsche Siid- 
polar-Expedition, 1901-1903, vol. 12, Zoology, vol. 4, fase. 4. 
1915. WirH, Cart. Copepoda I. Calanoida Amphascandria. Danish Ingolf-Hx- 
pedition, vol. 3, pt. 4. 
1929. Farran, G. P. Crustacea, pt. 10, Copepoda. British Antarctic (Terra 
Nova) Expedition, 1910. Nat. Hist. Rep., Zool., vol. 8, No. 3. 
1929, 1982. SEWELL, R. B. Seymour. The Copepoda of Indian Seas. Calanoida. 
Mem. Indian Mus., vol. 10, pp. 1-221, 81 figs., 1929; pp. 228-407, figs. 
82-181, 6 pls., 1932. 
1932. WILson, CHARLES BrancH. The copepods of the Woods Hole region, Massa- 
chusetts. U.S. Nat. Mus. Bull. 158. 
1933. Rose, Maurice. Copépodes pélagiques. Faune de France, No. 26. 
The last two references contain keys to the various genera and 
species and outline-drawings of the distinctive characters of every 
species included. 
