CHARACTERISTIC DEEP-SEA TYPES. CEPHALOPODS. 



61 



we may mention Benthoteuthis. (Fig. 279.) They are mainly 

 northern species, previously collected in shallower waters by 

 the United States Fish Commission. 



Fig-. 270. Benthoteiithis. f. (Verrffl.) 



But by far the most interesting of the cephalopods is a Spir- 

 ula (Fig. 280) in excellent condition, dredged off Grenada in the 



Fi>. 280. Spirula. 



(Hnxley.) 



Caribbean by the " Blake " from a depth of 950 fathoms. From 

 the condition of the chromatophores of the body, it evidently 

 lives with its posterior extremity buried to a certain extent in the 

 mud. The " Challenger " collected a specimen from 360 fath- 

 oms, off the Banda Islands. Cephalopods have been collected 



