PLATE VI. 



J'igs. A, A'. Lepidothynnus huttonii, reduced in size, New Zealand. A. from a sketch ; 

 A', skeleton, from a photograph ; a. scale, nat. size. 



Fig. B. Branchiostoma pelagicum, 10 mm. long, Mid Pacific. 



Fig. C. Hcdaphya elongata, 26 mm. long. South Pacific. 



