TYPE SPECIMENS OF PALEOZOIC EOSSILS 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 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 



1995 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 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 S-SjJLft hypotype Hall. Paleontology of New York. 1867. 



v. 4, pl- 34, fig- 4 ; 



Hall & Clarke. Paleontology of New York. 1894. 

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



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



C. A. White, coll. i860 



1998 MA G - hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pl. 29, fig. 8. 



Hamilton shales Tichenor's gully, 



Canandaigua lake, N. Y. 

 J. M. Clarke purchase 



1999 hypotype Hall. Paleontology of New York. 1867. 



v. 4, pl. 34, fig. ir-14. 



