PLATE XL 



Fig. A. Melanocetus murrayi (page 57). 

 Mid Atlantic, Station 106 ; depth, 1850 fathoms. 



Fig. B. Ceratias bisinnosus (page 53). 



Off Banda Island, Station I94a ; depth, 360 fathoms, b. Upper view of the knob-like 

 termination of the cephalic spine, magnified. 



Fig. C. Ceratias uranoscopus (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. 



