912 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
Stations 1; 71; 76-78; 3930; 8980; 4427; 4580; 4583; 4585; 4587; 
4611 ; 4644; 4646; 4652 ; 4659 ; 4685 ; 4691 ; 4716; 4721 ; 4740; 5030; 5129 
5185; 5186; 5224; 5225; 5227; 5231; 5233; 5246; 5340; 5422; Fiji 
Islands. Identified by Sars from 9 of these Adbatross and at 76 Mo- 
naco stations and present also at 53 stations in the Carnegie plankton, 
while only 4 specimens were reported in the Stboga plankton. 
EUCHAETA CONCINNA Dana 
Puate 8, Figures 72-73; PLATE 22, FIGURE 326 
Buchaeta concinna Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 21, 1849; 
United States Exploring Expedition, 1838-42 (Wilkes), vol. 14, pt. 2, Crus- 
tacea, p. 1088, 1853; pl. 77, figure 4a—c, 1855. 
Stations 4684; 4700; 4731. Established by Dana upon specimens 
of both sexes from the Straits of Banca east of Sumatra and found 
also at 40 stations in the Szboga plankton, but not present in the other 
lists. The female can be recognized by the structure of the genital 
segment, which is clearly shown in Sars’ figures here reproduced. 
The male is distinguished by the detailed structure of the last segment 
of the left fifth leg, which is shown in figure 326. 
EUCHAETA HEBES Giesbrecht 
Buchaeta hebes Glessprecut, Atti Acad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p. 337, 
1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 246, 263, pl. 15, 
figs. 29, 30; pl. 16, figs. 3-5, 20, 31, 32, 38, 44; pl. 37, figs. 32, 38, 54, 1892. 
Stations 3765 ; 5262. Identified by Sars from seven Monaco stations 
with both sexes fully described in the Monaco report. It is present 
in the Carnegie but not in the other plankton lists but has been reported 
casually in small numbers from nearly all the oceans. 
EUCHAETA LONGICORNIS Giesbrecht 
PLATE 8, FicurEs 79-83 
Huchaeta longicornis Giessrecut, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, 
p. 337, 1888 ; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 246, 264, 
pl. 16, figs. 35, 37 ; pl. 37, figs. 45, 46, 1892. 
Stations 4634 ; 4635 ; 4638 ; 4640; 4644; 4646; 4652; 4663 ; 4664; 4671; 
4715; Fiji Islands. A single female was found in the Siboga plankton 
and no specimens in the other planktons, and since all Giesbrecht’s orig- 
inal specimens were females the male has remained unknown. 
Furthermore, no dorsal view of the female has ever been published, 
and the descriptions given by Giesbrecht and Scott are very meager, 
especially that of Scott. Accordingly, the figures drawn by Sars, who 
identified these Albatross specimens, are here reproduced, and a full 
description of both sexes is given. 
