196 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
5507; Iloilo Straits, Philippine Islands. Described by M. Dahl as 
a coastal form from the Bismarck Archipelago and New Guinea. 
Widely distributed over the Pacific Ocean in the Carnegie plankton 
but not appearing in the other lists. 
CORYCAEUS ROBUSTUS Giesbrecht 
Corycaeus robustus GiesprecHT, Atti Accad. Lincei, Rome, ser. 4, vol. 7, Sem. 
1, p. 480, 1891; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 
660, 673, pl. 51, figs. 38, 42, 1892. 
Stations 39; 64; 66; 3829; 3878; 3901. Included by Brady in the 
Challenger plankton under the name C. venustus Dana, on the basis 
of specimens from the Philippine Islands. The species was taken 
by the Siboga at 19 stations in the tropical Pacific and by the Carnegie 
at widely scattered stations. 
CORYCAEUS SPECIOSUS Dana 
Corycaeus speciosus DANA, Proce. Amer. Acad. Arts and Sci., vol. 2, p. 38, 1849; 
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2 
Crustacea, p. 1220, 1853 ; pl. 86, fig. 1 a-d, 1855. 
Stations 15; 24; 27333; 41; 48; 44; 48; 49; 52; 53; 57; 64-66; 70; 75- 
77; 80; 2195; 2806; 3782; 3789; 3799; 3800; 3829; 3878; 3932; 4009; 
4010 ; 4190; 4731; 4756 ; 4926; 5102; 5120; 5129; 5133; 5155; 5175; 5180; 
5186; 5190; 5196; 5209; 5223; 5225; 5229-5231; 5240; 5246; 5247; 
5262; 5263; 5319; 5820; 5334; 53838; 53848; 5382; 5386; 5387; 5415; 
5429 ; 5434; 5484; 5507; 5580; 5578; Loilo Straits, Philippine Islands; 
Fiji Islands; Gilbert Islands. Found also at 1 Challenger, 13 Monaco, 
37 Siboga, and 62 Carnegie stations and therefore is well distributed 
in all oceans. 
CORYCAEUS SUBTILIS M. Dahl 
Corycaeus subtilis M. Daur, Ergebnisse der Plankton- Expedition der Humboldt- 
Stiftung, vol. 2, Die Copepoden, p. 80, pl. 8, figs. 9-16, 1912. 
Stations 3799; 8829. Originally established upon specimens from 
Zanzibar and the Bismarck Archipelago, it does not appear in any 
of the plankton lists. 
CORYCAEUS TYPICUS (Krgyer) 
Agetus typicus KréyEr, Naturh. Tidssk., Kjgbenhavn, ser. 2, vol. 2, p. 603, pl. 
6 figs. 27-29, 1849. 
Stations 61-63; 66; 70; 71; 75; 76; 3799; 3901; 5923; 5246; 5820; 
Sabtain Island, Philippine Islands; Fiji Islands; Niuafu Island. This 
species was recorded from 19 Monaco and 77 Carnegie stations but is 
not included in the other lists. Krgyer made this species the type 
of a new genus, Agetus, but it evidently belongs to Dana’s genus 
