PLATE LTI. 



Fig. A. Odontostomus hyalinus (page 200). 

 Mediterranean. With an upper view of the head, the eyes being directed upwards. 



Fig. B. Nannobrachmm nigrum (page 199). 

 Indian Ocean, Station 214 ; depth, 500 fathoms. 



Fig. C, C. Omosudis lowii (page 201). 



Fig. C represents the specimen from the Philippine Isknds, Station 214 ; depth, 500 

 fathoms. Fig. C, the specimen from Madeira, with the abdomen much distended, 

 having swallowed a Stertioptyx. 



Fig. D. Idioi-anthus ferox (page 216). 



North Atlantic, Station 63 ; depth, 2750 fathoms, d, enlarged view of distal portion of 

 barbel ; d', enlarged view of part of the trunk, to show the processes of the 

 vertebrae. 



