FIGURES 23 and 24 



Fig. 23. A-H. Ceratium vultur Cleve. A, variety recurvum Torgensen from station 

 29, east of the Caribbean Sea; B, variety reversum n. var. from station 40, off Ecuador; 



C, variety pavillardii (Jorpensen) from station 132, between California and Hawaii; D, variety 

 sumatranum (Karsten) from station 138, near Hawaii; E, variety iaponicum (Schroder) from 

 station 104, northeast of Guam; F, variety iaponicum from station 153, central Pacific; G, 

 variety regulare n. var. from station 47, north of Easter Island; H, variety vultur (Cleve) 

 from station 156, central Pacific. 



I, K. Ceratium horridum var. molle (Keloid) Jorgensen. I, from station 26, Atlantic 

 North Equatorial Current; K, from station 130, off California. 



J, L. Ceratium horridum var. clavig er (Kofoid). C, from station lb, Gulf Stream; 



D, from station 96, between Samoa and Phoenix islands. 



Fig. 24. A-B. Ceratium contrarium (Gourret) Pavillard. A, from station 19, Sar- 

 gasso Sea; B, Ceratium contrarium var. claviceps Schroder, from station 152, North 

 Equatorial Current of Pacific. 



C-I. Ceratium horridum Gran. C, from station 151, Pacific North Equatorial Cur- 

 rent; D, from station 8, cold North Atlantic; E, from station 35, Pacific Panama region; 

 F, from station 126, south of Gulf of Alaska; G, from station 6f, cold North Atlantic; H, 

 from station lb. Gulf Stream; I, from station 114, off Japan. 



180 



