PLATE XL 



Fig. A. Melanocetus murrayi (page 57). 

 Mid Atlantic, Station 106 ; depth, 1850 fathoms. 



Fig. B. Ceratias hispinosus (page 53). 



Oft'Banda Island, Station 194a; depth, 360 fathoms, h. Upper view of the kuob-like 

 termination of the cephalic spine, magnified. 



Fig. C. Ceratias uranoscojms (page 54). 

 North Atlantic, Station 89 ; depth, 2400 fathoms. 



Fig. D. Ceratias carunculatus (page 55). 

 South of Yedo, Station 232 ; depth, 345 fathoms. Twice the natural size. 



