BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 911 



Orthoceras multicameratum Emmons. 



Orthoceras multicameratum (Conrad MS.) Emmons, Nat. Hist. New York 

 Geol., 2d Dist., 1842, p. 382, fig. 93. Hall, Pal. New York, 1, 1847, p. 45; pi. 

 11, figs, la-c. Emmons, Amer. Geol., 1, pt. 2, 1855, p. 150, pi. 4, fig. 8. 

 Rogers, Geol. Pennsylvania, 2, pt. 2, 1858, p. 817, text fig. 596. Billings, 

 Canadian Nat. Geol., 4, 1859, p. 363, text fig. lib. Billings, Canadian Nat. 

 Geol., 4, 1859, p. 462 (loc. occ.). Emmons, Man. Geol., 1860, p. 95, text 

 fig. 82. Lincklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, p. 41, 

 pi. 2, fig. 12. Hitchcock, Geol. Vermont, 1, for 1861, 1862, p. 298, text fig. 

 212. Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 86, pi. 12, fig. 3. Foord, 

 Cat. FOBS. Ceph. British Mus., 1, 1888, p. 16. Lesley, Geol. Surv. Pennsyl- 

 vania, Rep. P 4, 1889, p. 553, figs. Clarke, Geol. Minnesota, 3, pt. 2, 1897, 

 p. 789. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 48, fig. 1245. 



Black River: Watertown, etc., New York; Minneapolis, Fountain, etc., Minne- 

 sota; Mineral Point, Wisconsin; Rockton, Illinois. 



Plesiotype.Cat. No. 17381, U.S.N.M. (Walcott). 



Orthoceras multiline a turn (Emmons). 



Orthoceratites multilineatus Emmons, Nat. Hist. New York Geol., 2, 1842, p. 



397, fig. 7. 

 Orthoceras multilineatum Owen, Amer. Jour. Sci. Arts, 47, 1844, p. 369, fig. 7; p. 



368, fig. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 553, fig. 

 Trenton: New York. 



Orthoceras multlseptum Hall. 



Orthoceras multiseptum Hall, Pal. New York, 2, 1852, p. 14, pi. 4 (bis), figs. 8a, b. 



Grabau, Bull. New York State Mus., 45, 1901, p. 215, fig. 146; Bull. Buffalo 



Soc. Nat. Sci., 7, 1901, p. 215, fig. 146. 

 Upper Medinan: Lockport and Medina, New York. 



ORTHOCERAS MURRAYI Billings. See Jovellania murrayi. 



Orthoceras niagarense Hall. 



Orthoceras niagarense Hall, 20th Rep. New York State Cab. Hist., 1868, pi. 20, 



fig. 3; rev. ed., 1870, p. 416, pi. 20, fig. 3. 

 Orthoceras (Geisonoceras) niagarense Kindle and Breger, 28th Ann. Rep. Dep. 



Geol. Nat. Res. Indiana, 1904, p. 471. 

 Niagaran: Waukesha and Pewaukee, Wisconsin (Racine); near Anderson, 



Indiana. 



ORTHOCERAS NICOLLETI Clarke. See Cycloceras nicolleti. 



ORTHOCERAS NODOCOSTATUM McChesney. See Dawsonoceraa annulatum. 



ORTHOCERAS (CYCLOCERAS) NOVA-CARLISLENSIS Foerste. See Cycloceraa novacar- 

 lislense. 



ORTHOCERAS NUMMULARIUM Etheridge. See Actinoceras backi. 



Orthoceras oberon Billings. 



Orthoceraa oberon Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 82. 

 Niagaran (Lockport): Grimsby Township, Ontario. 



Orthoceras obstructum Newell. 



Orthoceras obstructum Newell, Proc. Boston Soc. Nat. Hist., 23, 1866, pp. 467, 468, 



fig. 

 Niagaran: Wabash City, Indiana. 



