636 NEW YORK STATE MUSEUM 



3977 ^-f 2 ^ TYPE Hall. Paleontology of New York. 1879. v - 5> 



pt 2, pi. ySB, fig. 2. 



Schoharie grit Knox N. Y. 



C. Van Deloo, coll. 1862 



Orthoceras pertextum see Orthoc eras (Spy- 

 roceras) pertextum 



Orthoceras (Spyroceras) pertextum Hall 



3978 -i-2-ps. TYPE Orthoceras pertextum Hall. Paleontology 



of New York. 1879. v. 5, pt 2, p. 314, pi. 90, fig. 16, 17. 

 Portage (Ithaca) beds Cornell-Fisk quarry, Ithaca N. Y. 



S. G. Williams collection 



Orthoceras pervicax Hall 



3979 -~\-- TYPE Orthoceras pervicax Hall. Paleontology 



of New York. 1879. v. 5, pt 2, p. 257, pi. 79., fig. 9, 10. 

 Schoharie grit Schoharie N. Y. 



J. Gebhard purchase 

 Orthoceras pravum Hall 



3980 J-2-p.i TYPE Orthoceras tetricum Hall. Illustrations of 



Devonian fossils. 1876. Cephalopoda, pi. 36, fig. 2. 



Orthoceras pravjum Hall. Paleontology of 

 New York. 1879. v. 5, pt 2, p. 255, pi. 35, fig. 14; pi. 36, 

 fig. i. 



Schoharie grit Schoharie N. Y. 



J. Gebhard purchase 



3981 iafai TYPE Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 81, fig. i. 



Schoharie grit Clarksville N. Y. 



C. Van Deloo, coll. 1862 



3982 I2.fi TYPE Hall. Paleontology of New York. 1879. v. 5^ 



pt i, pi. 81, fig. 2, 5 ; pi. 112, fig. 17. 



Schoharie grit Schoharie N. Y 



J. Gebhard purchase 



3983 i2.ffi-i TYPE Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 8r, fig. 3, 4; pi. 112, fig. 16. 



Schoharie grit Schoharie N Y. 



J. Gebhard purchase 



3984 -^p.7 TYPE Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 8i,fig. 6. 



Schoharie grit Schoharie N. Y 



J. Gebhard purchase 



