Text-fig. 1. — General view of Chsetoguath anatomy, a. Side 

 view. B. Dorsal view of anterior region, c. Side view of 

 head of Sagitta macrocephala > sliowing the reduced hood 



1 From a specimen captured by Mr. G. Murray on November 21st, 1898, 

 in lat. 52°— IS'-l N., long. 85°-53'-9 W., in 1510 fathoms. 



