286 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Width of dorsal fin as preserved 1.8 



Length of caudal haemapophyses 9 mm. 



Length of vertebrae 6 



Depth of vertebrae 5 



Width of small intestine 3 



Length of rectum 12 cm. 



Width of rectum 1.3 



Length of interneural 1 



BIBLIOGRAPHY. 



1. Dean, Bashford, 1909. Studies on Fossil Fishes (Sharks, Chima- 



roids and Arthrodires) . Memoirs of the American Museum of Nat- 

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 plates XXVI-XLI. 

 la. HussAKOF, Louis, has given a very full bibliography of the forms 

 here discussed. Studies on Arthrodira, Memoirs of the American 

 Museum, 1906, vol. IX, part III. 



2. Eastman, Charles R., 1902. The Carboniferous Fish Fauna of 



Mazon Creek, Journal of Geology, vol. X, p. 536. 



3. Woodward, A. S., 1888, Paleontological Contributions to Selachian 



Morphology, I : On the Lateral Line of Cretaceous Species of 

 Scyllidae. Proc. Zool. Society of London, p. 126. 



1898. Preliminary Note on a New Specimen of Squatina 



from the Lithographic Stone of Nusplingen, Wurtemberg. Geo- 

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 3a. COLLINE, W. E., 1895. The Morphology of the Sensory Canal System 

 in Some Fossil Fishes. Proc. Birmingham Phil. Soc, vol. IX. 



4. Jaekel, Otto, 1901. Ueber jurassiche Zahne und Eier von Chimaer- 



iden. Beilage Band Neues Jahrbuch f. Mineralogie, etc., Bd. 14, 

 pp. 540-564, fig. 3, Tafeln XXII-XXIII. 



5. Gill, Theodore, 1905. An Interesting Cretaceous Chimaeroid Egg- 



case. Science, N. S., vol. XXII, No. 567, p. 601, November 10. 



6. Rets, Otto, 1888. Die Ccelacanthiden. Paleontographica, Bd. XXXV, 



pp. 1-96, Tafeln I-V. 

 Reis, Otto, 1889. Ueber ein Art Fossilization der Muskulatur. 



Gesellschaft f. Morphologic u. Physiologie in Muenchen, pp. 1-6. 

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und des Ruckenmarks bei fossilen Fischen. Archiv f. Mikro. 



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9. SOLLAS, W. J. and I. B. J., 1904. An Account of the Devonian Fish, 



Palieosjwndyhis gunni Traquair. Phil. Trans. Royal Society, 

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10. Eastman, Chas. The results of Patten, Traquair, Dean, Eastman 



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 Devonic Fishes of the New York Formations, Memoir No. 10 of 



the New York State Museum, pp. 24-65; 

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11. Hay, O. p., 1903. On Certain Genera and Species of North American 



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