408 NEW YORK STATE MUSEUM 



5514 ^^P- type Hall. Paleontology of New York. 1883. v. 5, 

 pt 1, plates and explanations, pi. 47, fig. 46, 47. 



Hall. Paleontology of New York. 1885. v. 5, pt 1, 

 pi. 47, fig. 46, 47. 



Hamilton beds Pratt's falls, Onondaga co. N. Y. 



G. B. Simpson, coll. 1863 



LEPTODESMA Hall 



Leptodesma ? 



25 j 5 9 3J.0 TYPE Leptodesma? Hall. Paleontology of New 

 York. 1885. v. 5, pt 1, pi. 80, fig. 4. 



Chemung (?) beds Salamanca, Cattaraugus co. N. Y. 



R. P. Whitfield, coll. 1869 



Leptodesma agassizi Hall 

 2 £j6 iiJLii type Leptodesma agassizi Hall. Paleontology 

 of New York. 1884. v. 5, pt 1, p. 182, pi. 89, fig. 17. 

 Chemung beds Along Chemung river above Elmira N.Y. 



A. Sherwood, coll. 187 1 

 On slab with type of L. spinigerum, Pal. N. Y. v. 5, 

 pt 1, pi. 89, fig. 1, and type of L . "b i 1 1 i n g s i , pi. 89, fig. 12. 

 25I7 93ii type Hall. Paleontology of New York. 1884. v. 5, 

 pt 1, pi. 89, fig. 18. 



Chemung beds Chemung river, between Elmira and 



Waverly N. Y. 

 A. Sherwood, coll. 187 1 



2 ^ r g 9 31JL. type Hall. Paleontology of New York. 1884. v. 5, 

 pt 1, pi. 89, fig. 19. 



Chemung beds Along Chemung river above 



Elmira N. Y. 

 A. Sherwood, coll. 187 1 

 On slab with type of L. spi nig eru m, Pal. N. Y. v. 5, 

 pt 1, pi. 89, fig. 1. 



Leptodesma alatum Hall 

 2 5I o 93^12 type Leptodesma alatum Hall. Paleontology of 

 New York. 1884. v. 5, pt 1, p. 218, pi. 90, fig. 26. 

 Chemung beds Canton, Bradford co. Pa. 



A. Sherwood, coll. 187 1 

 2520 93.12 type Hall. Paleontology of New York. 1884. v. 5, 

 pt 1, pi. 90, fig. 27. 



Chemung beds Canton Pa. 



A. Sherwood, coll. 187 1 



