BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 877 



Oncoceras subrectum Hall. 



Oncoceras subrectum Hall, Pal. New York, 2, 1852, p. 94, pi. 28, figs, lla, b. 

 Lower Clinton: Lockport, New York. 



Oncoceras teucer Billings. 



Oncoceras Teucer Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 



86, fig. 25. 

 Niagaran (Lockport): Grimsby, Ontario. 



Oncoceras thales Billings. 



Oncoceras Thales Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 87. 

 Niagaran (Lockport): Grimsby, Ontario. 



ONCOCERAS TRENTONENSE Lesley. See Cyrtoceras trentonense. 



Oncoceras tumidum Schuchert. 



Oncoceras tumidum Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 172, pi. 14, figs. 



1-3. 



Mohawkian: Head of Frobisher Bay, Baffin Land. 

 Cotypes.Czt. No. 28120, U.S.N.M. 



Oncoceras vasiforme Dwight. 



Oncoceras vasiforme Dwight, Amer. Jour. Sci. Arts, 3d ser., 27, 1884, p. 257, 



pi. 7, figs. 10, lOa. 

 Canadian (Beekmantown) : Rochdale, New York. 



Oncoceras whlteavesi Miller. 



Oncoceras gibbosum Whiteaves (not Hall, .1847), Trans. Roy. Soc. Canada, 7, 



sec. 4, 1890, p. 80, pi. 15, figs. 2, 3. 

 Oncoceras whiteavesi Miller, N. A. Geol. Pal., 1st App., 1892, p. 697. Whiteaves, 



Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 222. 

 Black River or Richmond: Lake Winnipeg, Manitoba. 



ONYCHOPTERUS Clarke and Ruedemann. See Eurypterus subgenus Onychopterus. 



OOCERAS Hyatt. Genotype: Cyrtoceras acinacies Barrande. 



Oonoceras Hyatt, Proc. Boston Soc. Nat. Hist., 22, 1883, p. 280. 

 Ooceras Foord, Cat. Foss. Ceph. British Mus., 1, 1884, p. 262, footnote. Grabau 



and Shimer, N. A. Index Fossils, 2, 1910, p. 125. Hyatt, Zittel-Eastman 



Textb. Pal., 1900, p. 530; 2d ed., 1913, p. 610. 



Ooceras kirbyi (Whitfield). 



Cyrtoceras Kirbyi Whitfield, Bull. Amer. Mus. Nat. Hist,, 2, 1889, p. 57, pi. 10, 



figs. 4-7. Cleland, Bull. Amer. Pal., 3, 1900, p. 131 (259), pi. 17, figs. 3, 4. 

 Ooceras kirbyi Ruedemann, Bull. New York State Mus., 90, 1906, p. 495. 

 Canadian (Beekmantown) : Beekmantown and Fort Hunter, New York. 



Ooceras(?) lativentrum Ruedemann. 



Ooceras(?) lativentrum Ruedemann, Bull. New York State Mus., 90, 14, 1906, 



p. 487, pi. 35, figs. 7-10, fig. 52. Grabau and Shimer, N. A. Index Fossils, 



2, 1910, p. 125, fig. 1370. 

 Chazyan (Valcour): Isle La Motte, Vermont; Valcour Island, New York. 



Ooceras(?) perkinsi Ruedemann. 



Ooceras(?) perkinsi Ruedemann, Bull. New York State Mus., 90, 1906, p. 499, 



pi. 34, figs. 4, 5, figs. 53-55. 

 Chazyan (Valcour): Isle La Motte, Vermont; Valcour Island and Chazy, New 



York. 



