TYPE SPECIMENS OF PALEOZOIC FOSSILS 417 



Hall. Paleontology of New York. 1884. v. 5, pt i t 

 pi. 25, fig. 6. 



Upper Chemung beds On road from Olean N. Y. to 



Smethport Pa. 

 C. Van Deloo, coll. 1870 



2 577 ^^ TYPE Hall. Paleontology of New York. 1883. v. 5, 

 pt i, plates and explanations, pi. 25, fig. 9. 



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

 pi. 25, fig. 9 ; pi. 90, fig. 8. 



Chemung beds On road from Olean N. Y. to 



Smethport Pa. 

 C. Van Deloo, coll. 1870 



2578 H^ TYPE? PHall. Paleontology of New York. 1883. v. 5, 



pt i, plates and explanations, pi. 25, fig. 10. 



PHall. Paleontology of New York. 1884. v. 5, 

 pt i, pi. 25, fig. 10. 



Chemung beds On road from Olean N. Y. to 



Smethport Pa. 

 C. Van Deloo, coll. 1870 



Leptodesma orus Hall 



2 579 --^p- TYPE Leptodesma orus Hall. Paleontology of 



New York. 1884. v. 5, pt i, p. 219, pi. 90, fig. 30. 

 Chemung beds Mansfield, Tioga co. Pa. 



A. Sherwood, coll. 1871 



Leptodesma patulum Hall 



2580 iAi TY pE Leptodesma patulum Hall. Paleontology 



of New York. 1884. v. 5, pt i, p. 226, pi. 91, fig. 10. 

 Upper Chemung beds Mansfield Pa. 



A. Sherwood, coll. 1871 



Leptodesma potens Hall 



2581 -2-^-A TYPE Leptodesma potens Hall. Paleontology of 



New York. 1883. v. 5, pt i, plates and explanations, 

 pi. 21, fig. 21. 



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

 pi. 21, fig. 21. 



Upper Chemung beds East Randolph, 



Cattaraugus co. N. Y. 

 C. Van Deloo, coll. 1863 



