TYPE SPECIMENS OF PALEOZOIC FOSSILS 497 



Pterinea securiformis Hall 



3051 -2-^-S- TYPE Avicula securiformis Hall. Paleontology 



of New York. 1852. 2: 331, pi. 75, fig. 4. 



Coralline (Cobleskill) limestone Schoharie N. Y. 



3052 -24p TYPE Hall. Paleontology of New York. 1852. v. 2, 



pl- 75> % 5 b - 



Coralline (Cobleskill) limestone Schoharie N. Y. 



Pterinea ? suborbicularis see Pterinopecten 

 suborbicularis 



Pterinea triqueter see Gosselettia triquetra 

 Pterinea undata see Clionychia undata 



PTERINOPECTEN Hall 



Pterinopecten conspectus Hall 



3053 ^ TYPE -. PLASTOTYPE Pterinopecten conspectus 



Hall. Paleontology of New York. 1883. v. 5, pt i, 

 plates and explanations, pl. 17, fig. 17. 



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

 pl. 17, fig. 17. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 



3054 -^P TYPE Hall. Paleontology of New York. 1883. v. 5, 



pt i, plates and explanations, pl. 17, fig. 18. 



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

 pl. 17, fig. 18. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 



355 -H TYPE Hall. Paleontology of New York. 1883. v. 5, 

 - pt i, plates and explanations, pl. 17, fig. 20. 



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

 pl. 17, fig. 20. 



Hamilton beds Darien, Genesee co. N. Y 



C. A. White, coll. 1860 



3056 &i-B- TYPE Hall. Paleontology of New York. 1883. v. 5, 

 pt i, plates and explanations, pl. 17, fig. 21. 



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

 pl. 17, fig. 21. 



Hamilton beds Fall brook near Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 



