PLATE LXIV. 



Chlamydoselache anguinea (page 2). 



Japan. The entire figure is one-half the natural size. A. Outer view of a chain of teeth 

 of the upper jaw, of the natural size, with a detached tooth somewhat magnified. 

 B. View of the basal side of the same chain of teeth ; g, grooves to receive 

 the processes p of the preceding tooth. C. Ventral fins and claspers, one-half 

 the natural size. D, D', Skeleton of the claspers ; a, principal cartilage ; 

 a', intermediate cartilages ; b, basals of ventral fin ; I, lobe-like expansion 

 of cartilage a ; r, r', r", rays of ventral fin ; t, t', movable calcified terminal 

 pieces, by which the canal can be opened or closed. 



