Report of the State Geologist. 245 



Illustrations of Devonian Fossils; Cephalopoda, pi. 48, fig. 9. 



Palaeontology of New York, vol. v, pt. 2, pi. 58, fig. 9. 



Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Palasontology of New York, vol. v, pt. 2, pi. Ill, fig. 3. 



Schoharie grit. Schoharie, N. Y. 



J. Gebhard purchase. 



Trochoceras JBiton, Hall. 18*79. 

 Palaeontology of New York, vol. v, pt. 2, p. 395, pi. Ill, fig. 7. 

 Schoharie grit. Near Clarksville, N. Y. 



Collected by C. Van JDeloo, 1862. 



Trochoceras discoideum, Hall. 1861. 



Descr. New Species Foss. , p. 36. 



Illustrations of Devonian Fossils, 1876; Cephalopoda, pi. 59, fig. 6. 



Palaeontology of New York, vol. v, pt. 2, pi. 59, fig. 8. 



Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Trochoceras expanswrn. Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 402, pi. Ill, fig. 5. 



Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Trochoceras ohliquatum, Hall. 1876. 

 nius. Dev. Foss. ExpL, pi. 48, fig. 5. 

 Palaeontology of New York, vol. v, pt. 2, pi. Ill, figs. 1, 2. 



Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Trochoceras Clio, Hall. 1861. 

 14th Rept. N. Y. State Cab. Nat. Hist., p. 108. 

 Illustrations of Devonian Fossils, 1876; Cephalopoda, pi. 59, fig. 4. 

 Palaeontology of New York, vol. v, pt. 2, pi. 59, fig. 1. 

 Schoharie grit. Schoharie, N. Y. 



J. Gehhard purchase. 



Illustrations of Devonian Fossils, 1876; Cephalopoda, pi. 59, figs. 

 1,8. 

 Palaeontology of New York, vol. v, pt. 2, pi. 59, figs. 1, 2. 

 Schoharie grit. Schoharie, N. Y. 



J. Gebhard purchase. 



