4 : 8 NEW YORK STATE MUSEUM 



2582 &2AA type Hall. Paleontology of New York. 1883. v. 5, pt 1, 



plates and explanations, pi. 21, fig. 30. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 21, fig. 30. 



Chemung beds Portville, Cattaraugus co. N. Y. 



R. P. Whitfield, coll. 1869 



2 5 8 3 --3 1 - type Hall. Paleontology of New York. 1883. v. 5, pt 1, 



plates and explanations, pi. 22, fig. n. 



Hall. Paleontology of New York. 1884. v « 5> pt i» 

 pi. 22, fig. 11. 



Upper Chemung beds Olean, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



2584 *■*£*■* type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 22, fig. 12. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig. 12. 



Upper Chemung beds ■ Olean N. Y. 



C. Van Deloo, coll. 1863 



2585 23AA type Hall Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pi. 22, fig. 19. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig. 19. 



Upper Chemung beds Portville N. Y. 



R. P. Whitfield, coll. 1869 

 ,2586 -^P type? ?Hall. Paleontology of New York. 1883. v. 5, 

 pt 1, plates and explanations, pi. 22, fig. 20. 



? Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig. 20. 



Chemung beds Randolph, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



2587 ^- A type Plall. Paleontology of New York. 1884. v. 5, 



pt 1, pi. 89, fig. 7. 



Upper Chemung beds Olean N. Y. 



C. Van Deloo, coll. 1863 



Leptodesma potens var. juvens Hall 



2588 * S A 4B type Leptodesma potens var. juvens Hall. 



Paleontology of New York. 1883. v. 5, pt 1, plates and 

 explanations, pi. 22, fig. 16. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 22, fig. 16. 



Chemung beds East Randolph N. Y. 



C. Van Deloo, coll. 1863 



