COPEPODS GATHERED BY ALBATROSS—WILSON 289 
PHYLLOPUS MUTICUS Sars 
PLATE 15, FiaurRE 189 
Phyllopus muticus Sars, Bull. Inst Océanogr. Monaco, No. 101, p. 26, 1907; Rés. 
camp. sci. Albert de Monaco, No. 69, p. 345, pl. 124, figs. 10-16, 1925. 
Station 4687. Identified by Sars at this Albatross station between 
Callao, Peru, and Easter Island and at three Monaco stations but not 
found in the Siboga or Carnegie planktons. 
Genus PLEUROMAMMA Giesbrecht, 1898 
PLEUROMAMMA ABDOMINALIS (Lubbock) 
Diaptomus abdominalis Lugsock, Trans. Ent. Soc. London, new ser., vol. 4, p. 28, 
pl. 10, figs. 1-8, 1856. 
Stations 2; 27; 34; 49; 60; 65; 236; 2859; 3799; 3867; 3878; 3901; 
4574; 4580; 4590; 4619; 4635; 4638; 4640; 4644; 4652; 4655; 4657; 
4681 ; 4689 ; 4700 ; 4707; 4717 ; 4719 ; 4721; 4730; 4734; 4740; 4757; 4758; 
4926 ; 4952 ; 5120; 5129; 5133; 5180; 5185 ; 5186; 5190; 5196; 5224; 5227; 
5231; 5233; 5234; 5263; 5319; 5422; 5487; 5451. Identified by Sars 
from 22 of these Albatross and from 71 Monaco stations and present 
also in the Challenger, Siboga, and Carnegie planktons. The species 
is well distributed and under favorable conditions often congregates 
in large numbers. 
PLEUROMAMMA BOREALIS (F. Dahl) 
Pleuromma boreale F. Dant, Zool. Anz., vol. 16, No. 415, p. 105, 18938. 
Stations 19; 5263. Established by F. Dahl upon specimens from the 
northern Atlantic and not appearing in any of the plankton reports. 
PLEUROMAMMA GRACILIS (Claus) 
Pleuromma gracile CLAus, Die freilebenden Copepoden, p. 197, pl. 5, figs. 7-11, 
1863. 
Stations 1; 3; 6-8; 11; 13; 145 16; 18; 19; 21-25; 27; 38; 34; 36; 41; 
42; 48; 63; 65-67; 77; 79; 2195; 3765; 3799; 3800; 3867; 3878; 3901; 
4574; 4640; 4644; 4646; 4652; 4685; 4700; 4707-4710; 4719; 4722; 
4728; 4730; 4757; 4760; 4766; 4793; 4806; 4926; 5110; 5120; 5125; 
5129; 5180; 5185; 5186; 5190; 5196; 5228; 5224; 5297; 5229; 5231; 
5233; 5234; 5240; 5246; 5263; 5422; 5424; 5434; 5437; 5451; Sabtan, 
Nasugbu Bay, and Luzén Island, Philippine Islands. Identified by 
Sars from 35 of these Albatross stations and from 39 Monaco sta- 
tions; also present in the Siboga and Carnegie planktons. 
PLEUROMAMMA PISEKI Farran 
PLATE 27, Figures 400, 401 
Pleuromamma piseki FarraNn, British Antarctic (Terra Nova) Exped., 1910, 
Zool., vol. 8, No. 3, p. 261, figs. 23, 24, 1929. 
