TROPICAL PLANKTON. 991 
19 Wyse tow-nettings and in No. 7 Herdman collection, 
showing a range over the Indian Ocean, Bay of Bengal, 
and the Red Sea, all new records. Its previously known 
range is the Atlantic and Pacific. 
Coryceus furcifer, Claus. 
1863. Coryceus furcifer, Claus, Die Freileb. Cop., p. 157, Pl. XXIV., 
figs. 7—12. 
The very long, thin caudal segments, more than 14 
times as long as the abdomen, distinguish this species from 
the other members of the genus Coryceus, with the 
exception of C. longistylus. It was present in 1, 2,138 
Wyse tow-nettings and in No. 11 Herdman series, being 
taken almost between Madagascar and the African main- 
land and in the Bay of Bengal, both being an extension of 
its range of distribution, its previous records being the 
Mediterranean and Pacific Ocean. 
Coryceus rostratus, Claus. 
1863. Coryceus rostratus, Claus, Die Freileb. Cop., p. 157, PI. 
XXVIII., fig. 5. 
The long wedge-shape of this species roughly dis- 
tinguishes it. It was fairly abundant where present, and 
weeeonddan 6, 9, 11, 12, 13, 14, 15, 16, 19, 21, 22, 23 
Wyse tow-nettings, and in 2, 4, 7, 8, 10, 11, 18, 16, 20, 23 
Herdman series, showing its prevalence over the entire 
district traversed. The Mediterranean appears to be its 
only previously recorded area. 
Coryceus dane, Giesbrecht. 
1891. Coryceus dane, Giesbrecht, Atti Accad. Lincei Roma, vol. 
VII., 1 Sem., pp, 474—481. 
This species much resembles C. ovalis, the furcal seg- 
ments being rather longer. Its range in the present 
collections is the Bay of Bengal and the Mediterranean. 
It was found in 12, 15, 16, 18, 20, Wyse tow-nettings only. 
