COPEPODS GATHERED BY ALBATROSS—WILSON 159 
in any of the plankton records. A single female was also taken at 
each of these Albatross stations, and therefore it must be a rare species. 
Genus AETIDEUS Brady, 1883 
AETIDEUS ARMATUS (Boeck) 
Pseudocalanus armatus Boeck, Forh. Vid. Selsk., Christiania, vol. 14, p. 38, 1872. 
Stations 63; 65; 67; 71; 4574; 4615; 4652; 4665; 4673; 4700; 4705; 
4717; 4758; 5185; 5226; 5227; 5233; 5437; Fiji Islands. ‘This species 
is found sparingly in all the plankton lists. Only a few specimens 
were taken at any of these Albatross stations except 4758 off the Alas- 
kan coast, where 150 were obtained. 
Genus AMALLOPHORA T. Scott, 1894 
AMALLOPHORA TYPICA T. Scott 
PLATE 20, FIGURE 275 
Amallophora typica Tt. Scorr, Trans. Linn. Soc. London, ser. 2, Zool., vol. 6, pt. 
1, p. 54, pl. 3, figs. 3946, pl. 4, figs. 14, 1894. 
Stations 2; 4673 ; 4700; 4707; 5185. This species was established by 
T. Scott in 1894 upon a single male specimen captured in the Gulf of 
Guinea. A single female was reported in the Monaco plankton, a 
single male in the Stboga plankton, two females in the Carnegie plank- 
ton, and neither sex in the other lists. Hence the 25 specimens, in- 
cluding both sexes, identified by Sars from the first four of these 
Albatross stations are many times the largest collection thus far 
obtained. The fifth legs of the female are shown on plate 20, figure 
275, and can be identified by their obliquely truncated tips with a 
spine at either corner, the inner one much longer than the outer. In 
the male the fifth legs are uniramose, the left foot four times as long 
as the right. 
Genus AMALLOTHRIX Sars, 1925 
AMALLOTHRIX ARCUATA (Sars) 
PLATE 2, FIGURES 7, 8 
Scolecithricella arcuata Sars, Bull. Inst. Océanogr. Monaco. No. 377, p. 10, 1920. 
Amdallothrig arcuata Sars, Rés. camp. sci. Albert de Monaco, No. 69, p. 185, pl. 51, 
figs. 14-21, 1925. 
Stations 4665 ; 4667; 4679; 4716. Originally named and briefly de- 
scribed by Sars as a new species of Scolecithricella in 1920 and after- 
ward transferred to his genus Amadlothriz in the Monaco plankton, 
with complete description and figures. It occurred also in the Car- 
