TYPE SPECIMENS OF PALEOZOIC FOSSILS 321 



Spirifer mesacostalis Hall. Paleontology of 

 New York. 1867. v. 4, pi. 40, fig. 11. 



Chemung beds Olean, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



Spirifer mesacostalis? var. acuminata see 

 Spirifer mucronatus var. posterus 



Spirifer mucronatus Conrad (sp.) 

 1994 s ^y-£ hypotype Delthyris mucronatus Conrad. 5th 

 annual report of the New York state geological survey. 

 1841. p. 54. 



Spirifera mucronata Hall. Paleontology of 

 New York. 1867. v. 4, pi. 34, fig. 1. 



Hamilton shales Darien Center, Genesee co. N. Y. 



C. A. White, coll. i860 

 *995 : '•/' '' hypotype Hall. Paleontology of New York. 1867. 

 v. 4, pi. 34, fig. 2. 



Hamilton shales Vincent, Ontario co. N. Y. 



C. A. White and C. Van Deloo, coll. i860 



1996 s 4 { 5fJ - hypotype: hypoplastotype Hall. Paleontology of New 



York. 1867. v. 4, pi. 34, fig. 3. 



Hall. 2d annual report of the New York state geolo- 

 gist. 1883. pi. 59, fig. 15. 



Hall & Clarke. Paleontology of New York. 1894. 

 v. 8, pt 2, pi. 34, fig. 15. 



Marcellus shale Alden, Erie co. N. Y. 



C. A. White and C. Van Deloo, coll. i860 



1997 "Y'' ; hypotype Hall. Paleontology of New York. 1867. 



v. 4, pi. 34, fig. 4. 



Hall & Clarke. Paleontology of New York. 1894. 

 v. 8, pt 2, pi. 34, fig. 16. 



Hamilton shales Darien Center, Genesee co. N. Y. 



C. A. White, coll. i860 

 l, ) c )X .' '' hypotype Hall & Clarke. Paleontology of New York. 

 1894. v. 8, pt 2, pi. 29, \~\£. 8. 



Hamilton shales Tichenor's u.nlly, 



Cahandaigua lake, N. Y. 

 J. M. Clarke purchase 

 '999 s: '«"' hypotype II.iU. Paleontology of New York. i8(»7. 

 v. .j, pi. 34, fig. 1 1 1 |. 



