PLATE LXII. 



Fig. A. Syncqyhohranchus pinnahts (page 253). 

 Atlantic ; deep sea off Japan and the Philippine Islands. The specimen figured is from 

 Station 235; depth, 565 fathoms. Separate view of the confluent gill-openings. 



Fig. B. Synaplwhranchus hathyhius (page 254). 

 Pacific, at a depth of from 1375 to 2050 fathoms. The specimen figured is from Station 

 246 ; depth, 2050 fathoms. 



