226 IioRTT-sixTH Report on the State Museum, 



Orthoceras Atreus^ Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 305, pi. 88, fig. 1. 

 Portage group. Roger's Bridge, Genesee River. 



Orthoceras Behryx^ var. Cayuga, Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 276, pi. 86, fig. 3. 

 Chemung group. Ithaca, N. Y. 



Collected by J. W. Hall and C. Van Deloo, 1866. 



Palaeontology of New York, vol. v, pt. 2, pi. 86, fig. 4. 

 Chemung group. Ithaca, N. Y. 



Collected by J. W. Mall and C, Van Deloo, 1866. 



Palaeontology of New York, vol. v, pt. 2, pi. 86, fig. 5. 

 Chemung group. Ithaca, N. Y. 



Pickett purchase. 



Orthoceras consortale. Hall. 1886. 



Fifth Annual Report of the New York State Geologist. Expl. pi. 

 (118) 2, figs. 3, 4, 5. 



Palaeontology of New York, vol. v, pt. 2, Suppl. =vol. vii, p. 29, 

 pi. 118, figs. 3. 4, 5. 



Chemung group. Panama, N. Y. 



Collected by James Hall, 1870. 



Orthoceras expositum. Hall. 1886. 



Fifth Annual Report of the New York State Geologist. Expl.pl. 

 (118) 2, fig. 2. 



Palaeontology of New York, vol. v, pt. 2, Supp. =vol. vii, p. 29, 

 pi. 118, fig. 2. 



Chemung group. Canton, Penn. 



Collected by A. Sherwood. 



Orthoceras palmatum. Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 312, pi. 90, fig. 9, 10, 

 Chemung group. Southern New York. 



Orthoceras Leander, Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 309, pi. 90, figs. 6,7. 

 Chemung group. Near Ithaca, N. Y. 



J. W. Hall and C. Van Ddoo, 1866. 



