PLATE XXIV. 



Fig. A. Acanthonus armatus (page 117). 



Indo-Pacific Ocean ; the specimen figured is from north of New Guinea, Station 218 ; 

 depth, 1070 fathoms, a, outer ; a', inner aspect of first branchial arch. 



Fig. B. Porogadus rostratus (page 113). 

 North of Celebes, Station 198 ; depth, 2150 fathoms. A magnified view of a scale is 

 added. 



