TYPE SPECIMENS OF PALEOZOIC FOSSILS 415 



Leptodesma medon Hall 



2562 2-OJ. type Leptodesma medon Hall. Paleontology of 



New York. 1884. v. 5, pt 1, p. 197, pi. 90, fig. 1. 



Upper Chemung beds Lawrenceville, Tioga co. Pa. 



A. Sherwood, coll. 187 1 



2563 *-2£& 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 ^4M type Hall. Paleontology of New York. 1884. v. 5, 



pt 1, pi. 90, fig. 4. 



Upper Chemung beds Lawrenceville Pa. 



A. Sherwood, coll. 187 1 



Leptodesma mentor ? Hall 

 2 5^5 --p- 2 - type? Leptodesma mentor? Hall. Paleontology 

 of New York. 1884. v. 5, pt 1, p. 205, pi. 23, fig. 15. 

 Upper Chemung beds Smethport Pa. 



C. Van Deloo, coll. 1870 



2566 &*££■ type Hall. Paleontology of New York. 1884. v. 5, 



pt 1, pi. 90, fig. 5. 



Upper Chemung beds Smethport Pa. 



C. Van Deloo, coll. 1878 



Leptodesma mortoni Hall 



2567 type Leptodesma mortoni Hall. Paleontology of 



New York. 1883. v. 5, pt 1, plates and explanations, 

 pi. 21, fig. 29. 



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

 pi. 21, fig. 29. 



Chemung beds Portville, Cattaraugus co. N. Y. 



R. P. Whitfield, coll. 1S69 



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

 256K ." type Hall. Paleontology of New York. 1883. v. 5, 

 pt 1, plates and explanations, pi. 21, fig. 31. 



Hall. Paleontology of New York. [884. v. 5, pt 1. 

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



Chemung beds Portville X. Y. 



k. P. Whitfield, coll. i8< 

 on slab with type of pi, 21, fig. 89. 



2569 *Ap type Hall. Paleontology (-I New York. 1883. v. 5. 

 pt 1 ; plates and explanations, pi. n, fig, 3 



