FIGURE 27 



Fig. 27. A-E. Ceratium arcticum (Ehrenberg) Cleve. A, variety arcticum from 

 station 13, off Newfoundland (enlarged ventral view of body showing sutures); B, same 

 specimen, dorsal view; C, variety longipes (Bailey) Gran from station 8, off Iceland; D, 

 same from station 123, off Aleutian Islands; E, same from station 117, northeast of Japan. 



F-G. Ceratium hexacanthum Gourret. F, from station 50, near Easter Island; G, 

 chain of four cells from station 103, north of Marshall Islands. 



H, Ceratium reflexum Cleve, from station 108, north of Guam. 



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