162 



CATALOG or FOSSIL FISHES IN THE MUSEUM 



of Chimaeroids. The type specimen is preserved in the American 

 Museum, and so far as known, it is the only specimen of the species 

 ever discovered. 



Fig. 55. a, Cyrtacanthus? Outline of Spine Labeled by Newberry: "Cyrtacan- 

 thus dentatus? N." Natural Size. E 1855 



Onondaga limestone; Buffalo, N. Y. 



55. B, Cyrtacanthus dentatus Newberry. Outline of the Type, Natural Size 



Delaware limestone; Ohio. (Original in the Newberry Coll., Amer. Mus.) 



E 1855 In the Buffalo Museum there is a portion of a spine (fig. 

 55, ^) having some resemblance to the distal half of the 

 type of C. dentatus. It was collected by Mr. F. K. 

 Mixer, from the Onondaga limestone of Buffalo. The 

 specimen was examined by Newberry, for it bears a label 

 in his hand, reading, ' 'Cyrtacanthus dentatus} N. Cyrta- 

 canthus is probably one arm of a forked spine belonging 



