Gaekan. — Chimaeroids. 



PLATE 4. 



Fig. 1. Harriotta raleighana, appearance of skin on the flank, 4 times natural 



length. 

 Fig. 2. Ehinochimaera pacifica, armature of upper edge of supracaudal fin, 3 times 



nat. 

 Fig. 3. Rliinochimaera pacifica, lateral canal and rings, 8 times nat. 

 Fig. 4. Ehinochimaera pacifica, intestine slit open to show spiral and valves. 

 Fig. 5. Eaia laevis Mitch., ventral fins with claspers turned forward. 



