2/O NEW YORK STATE MUSEUM 



1645 ^4^ HYPOPLASTOTYPE Hall & Clarke. Paleontology of New 



York. 1892. v. 8, pt i, pi. 4F, fig. 15. 



Waverly beds Meadville Pa. 



1646 -3^1 HYPOTYPE Hall & Clarke. Paleontology of New York. 



1892. v. 8, pt i, pi. 4F, fig. 16. 



Waverly beds Meadville Pa. 



Orbiculoidea randalli Hall 



1647 "i" TYPE Discina randalli Hall. i6th annual report 



New York state cabinet of natural history. 1863. p. 25. 

 Hall. Paleontology of New York. 1867. v. 4, pi. 2, 



fig. 34- 



Orbiculoidea randalli Hall & Clarke. Paleon- 

 tology of New York. 1892. v. 8, pt i, pi. 4E, fig. 18. 



Hamilton beds Near Schoharie N. Y. 



Orbiculoidea (Schizotreta) ovalis Hall & Clarke 



1648 ^-^ TYPE Orbiculoidea (Schizotreta) ovalis Hall 



& Clarke. Paleontology of New York. 1892. v. 8, pt i, 

 p. 177, pi. 4 E, fig. 4, 5. 



Hall & Clarke. i4th annual report of the New York 

 state geologist. 1895. pi. 2, fig. 12, 13. 



Trenton limestone Middleville N. Y. 



Orbiculoidea (Schizotreta?) tenuilamellata Hall 



1649 3-^a-*- HYPOTYPE Orbicula tenuilamellata Hall. Pal- 



eontology of New York. 1852. 2 : 250. 



Orbiculoidea (Schizotreta?) tenuilamel- 

 lata Hall & Clarke. Paleontology of New York. 1892. 

 v. 8, pt i, pi. 4F, fig 2. 



Niagaran Hamilton Ont. 



C. D. Walcott, coll. 1878 



1650 ^Lt HYPOTYPE Hall & Clarke. Paleontology of New York. 



1892. v. 8, pt i, pi. 4F, fig. 3. 



Niagaran Hamilton Ont. 



C. D. Walcott, coll. 1878 



Orbiculoidea tullia Hall 



1651 33JL&. TYPE Discina tullia Hall. i6th annual report of 



the New York state cabinet of natural history. 1863. p. 28. 



Hall. Paleontology of New York. 1867. v. 4, pi. 2, 

 fig. 16, 17. 



Tully limestone Ovid, Seneca co. N. Y. 



