PLATE XL. 



Fig. A. Macrurus armatus (page 150). 



South Pacific, in 400 to 2425 fathoms. The figure is taken from a specimen from Station 

 147 ; depth, 1600 fathoms, a represents a magnified scale of a normal specimen, 

 a' that of an albino. 



Fig. B. Maci'urus affinis (page 151). 



Mouth of the Rio de la Plata, Station 323 ; depth, 1900 fathoms, h, magnified view of 

 a scale. 



