292 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Giesbrecht found it in the Pacific Ocean, and I do not find 
it elsewhere recorded. 
Coryceus elongatus, Claus. 
1863. Coryceus elongatus, Claus, Die Freileb. Cop., p. 157, PI. 
XXIV., figs. 8 and 4. 
In this species the abdomen is one-jointed, and the 
caudal segments about two-thirds the length of the abdo- 
men, a fairly easily distinguishable feature. It was found 
in five Herdman tow-nettings, Nos. 14, 15, 16, 21, 28, 
below Cape Guardafui on the East African coast, and in 
the Mediterranean, the latter and the Pacific Ocean being 
its known previous range of distribution. 
Coryceus speciosus, Dana. 
1849. Coryceus speciosus; U.S. Expl. Exped., p. 1222, Pl. LXXXVI., 
figs. 4 a—d. 
The large size of this species, and the widely diverging 
caudal stylets of the female, easily distinguish it. It was 
fairly abundant when present, occurring at 1, 2, 3, 8, 9, 
10, 12, 18, Wyse stations, and at 7, 8,15, Herdman series, 
in the Indian Ocean, and most numerous between Mada- 
gascar and the African mainland. This is a new record ; 
the Mediterranean and Atlantic and Pacific Oceans being 
its previously known range of distribution. 
Coryceus alatus, Giesbrecht 
1891. Coryceus alatus, Giesbrecht, Atti Accad. Lincei Roma, vol. 
VII., 1 Sem., pp. 474—481. 
Evidently a rare species, and found only once, viz., 
No. 4, Wyse station. It somewhat nearly resembles C. 
elongatus, the caudal stylets being rather longer and 
narrower. Its only previous record is from the Pacific 
Ocean, 
