TYPE SPECIMENS OF PALEOZOIC FOSSILS 457 



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

 pi. 32, fig. 14. 



Chemung beds Randolph, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 

 Mytilarca gibbosa Hall 



2827 &&f^- TYPE Mytilarca gibbosa Hall. Paleontology of 



New York. 1884. v. 5, pt i, p. 262, pi. 33, fig. 20; 

 pi. 87, fig. 7. 



Chemung beds Napoli, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 

 Mytilarca lata Hall 



2828 ja ~^- TYPE Mytilops(Modiola) 1 a t a Hall. Paleontol- 



ogy of New York. 1883. v. 5, pt i, plates and explana- 

 tions, pi. 33, fig. 22. 



Mytilarca lata Hall. Paleontology of New York. 

 1884. v. s,pt i, pi. 33, fig. 22. 



Chemung beds Randolph, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 

 Mytilarca (Plethomytilus) oviformis Conrad (sp.) 



2829 -2A5-6 HYPOTYPE I n o c er a m u s o v i f o r m i s Conrad. Jour- 



nal of the Academy of natural sciences of Philadelphia. 

 1842. 8 : 246. 



Plethomytilus oviformis Hall. Paleontology 

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

 pi. 31, fig. 2. 



Mytilarca (Plethomytilus) oviformis 

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

 pi. 31, fig. 2. 



Hamilton beds Hamilton, Madison co. N. Y. 



J. Hall, coll. 1844 



2830 .a^-& HYPOTYPE Hall. Paleontology of New York. 1883. 



v. 5, pt i. plates and explanations, pi. 31, fig. 3. 



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



pl- 3 1 * % 3- 



Hamilton beds York Center, Livingston co. N. Y. 



2831 .a^-s. HYPOTYPE Hall. Paleontology of New York. 1883. 



v. 5, pt i, plates and explanations, pl. 31, fig. 7. 



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



pi- 3 1 , % 7- 



Hamilton beds Canandaigua lake, N. Y. 



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



