TYPE SPECIMENS OF PALEOZOIC FOSSILS 415 



Leptodesma medon Hall 



2562 3.2-2. TYPE Leptodesma medon Hall. Paleontology of 



New York. 1884. v. 5, pt i, p. 197, pi. 90, fig. i. 



Upper Chemung beds Lawrenceville, Tioga co. Pa. 



A. Sherwood, coll. 1871 



2563 H TYPE Hall. Paleontology of New York. 1884. v. 5, 



pt i, pi. 90, fig. 2. 



Upper Chemung beds Lawrenceville Pa. 



A. Sherwood, coll. 1871 



2564 --/^ TYPE Hall. Paleontology of New York. 1884. v. 5, 



pt i, pi. 90, fig. 4. 



Upper Chemung beds Lawrenceville Pa. 



A. Sherwood, coll. 1871 

 Leptodesma mentor ? Hall 



2 5 6 5 -"-- TYPE? Leptodesma mentor? Hall. Paleontology 



of New York. 1884. v. 5, pt i, p. 205, pi. 23, fig. 15. 

 Upper Chemung beds Smethport Pa. 



C, Van Deloo, coll. 1870 



2566 ^Ap TYPE Hall. Paleontology of New York. 1884. v. 5, 



pt i, pi. 90, fig. 5. 



Upper Chemung beds Smethport Pa. 



C. Van Deloo, coll. 1878 

 Leptodesma mortoni Hall 



2567 ^--r- TYPE L epto desma mort oni Hall. Paleontology of 



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

 pi. 21, fig. 29. 



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

 pi. 21, fig. 29. 



Chemung beds Portville, Cattaraugus co. N. Y. 



R. P. Whitfield, coll. 1869 



On slab with type of pi. 21, fig. 31; pi. 89, fig. 9. 



2568 p TYPE Hall. Paleontology of New York. 1883. v. 5, 



pt i, plates and explanations, pi. 21, fig. 31. 



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

 pi. 21, fig. 31; pi. 89, fig. 9. 



Chemung beds Portville N. Y. 



R. P. Whitfield, coll. 1869 



On slab with type of pi. 21, fig. 29. 



2 5 6 9 --3 TYPE Hall. Paleontology of New York. 1883. v. 5, 



pt i; plates and explanations, pi. 21, fig. 32. 



