PLATE XXIII. 



Fig. A. BatJiyonus taenia (page 110). 

 Mid Atlantic, Station 104 ; depth, 2500 fathoms. Scales restored. 



Fig. B. Catastyx messien (page 104). 

 Messier Strait, Station 306a ; depth, 345 fathoms. 



Fig. C. Diplacayithopoma hrachysoma (page 115). 

 Off Pernambuco, Station 122 : depth, 350 fathoms. 



