TYPE SPECIMENS OF PALEOZOIC FOSSILS 321 



Spirifer mesacostalis Hall. Paleontology of 

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



Chemung beds Clean, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



Spirifer mesacostalis? var. acuminata see 

 Spirifer mucronatus var. posterus 



Spirifer mucronatus Conrad (sp.) 



1 994 -8-2-Lfi. 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. i. 



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



C. A. White, coll. 1860 



1995 n^-6. HYPOTYPE Hall. Paleontology of New York. 1867. 



v. 4, pl- 34, fig- 2. 



Hamilton shales Vincent, Ontario co. N. Y. 



C. A. White and C. Van Deloo, coll. 1860 



1996 &S-Z-& HYPOTYPE : HYPOPLASTOTYPE Hall. Paleontology of New 



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



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

 gist. 1883. pl. 59, fig. 15. 



Hall & Clarke. Paleontology of New York. 1894. 

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



Marcellus shale ; Alden, Erie co. N. Y. 



C. A. White and C. Van Deloo, coll. 1860 



8.as 6 H YPOTYPE 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. 1860 



si*.*. 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 



S3JL6 HYPOTYPE Hall. Paleontology of New York. 1867. 

 v. 4, pl. 34, fig. 11-14. 



