BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 919 



ORTHOCERAS (EUORTHOCERAS?) VIRGULATUM Foerste. See Orthoceras tenuisipho- 

 natum. 



Orthoceras vulgatum Billings. 



Ortlioceras vulgatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56 



1857, p. 337. 

 Trenton: Ottawa, Ontario. 



Orthoceras wauwatosense Whitfield. 



Orthoceras wauwatosense Whitfield, Ann. Rep. for 1879, Wisconsin Geol. Surv., 



1880, p. 66; Geol. Wisconsin, 4, 1882, p. 297, pi. 19, fig. 2. 

 Niagaran (Racine): Near Wauwatosa, Wisconsin. 



Orthoceras westoni Whiteaves. 



Ortlioceras westoni Whiteaves, Ottawa Nat., 12, 1898, p. 117; Geol. Surv. Canada, 



Pal. Foss., 3, pt. 4, 1906, p. 324. 

 Trenton: Mile End, Montreal, Quebec. 



P Observation. Species dropped by author, who in 1906 regarded specimen as a 

 siphuncle of Endoceras. 



Orthoceras winnlpegense Whiteaves. 



Orthoceras Winnipegense Whiteaves, Trans. Roy. Soc. Canada, 9, sec. 4, 1892, 

 p. 82, pi. 6, figs. 4, 4a, b; Pal. Foss. Geol. Surv. Canada, 3, pt. 3, 1897, p. 212. 

 Black River or Richmond: Lake Winnipeg, Manitoba. 



ORTHOCERAS WOODSWORTHI McChesney. See Kionoceras cancellatum. 



Orthoceras xerxes Billings. 



Orthoceras Xerxes Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 316. 

 Canadian (Beekmantown): Phillipsburg, Quebec. 



ORTHOCERAS XIPHIAS Billings. See Tripteroceras xiphias. 

 ORTHOCERAS (ACTINOCERAS) YOUNGI Foerste. See Actinoceras youngi. 

 ORTHOCERATITES Waldheim. See Orthoceras Breynius. 



ORTHODESMA Hall and Whitfield. Genotype: O. rectum Hall and Whitfield. 

 Orthodesma Hall and Whitfield, Pal. Ohio, 2, 1875, p. 93. Zittel, Handb. Pal., 

 2, 1881, p. 219. Miller, N. A. Geol. Pal., 1889, p. 497. Ulrich, Geol. Surv. 

 Ohio, 7, 1893, p. 660; Geol. Minnesota, 3, pt. 2, 1894, p. 516. Cumings, 32d 

 Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 982. Grabau and Shimer, 

 N. A. Index Fossils, 1, 1909, p. 379. 



ORTHODESMA (part) of authors. See Rhytimya and Cymatonota Ulrich. 



Orthodesma afflne Whiteaves. 



Orthodesma affine Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, 



p. 184, pi. 20, fig. 5. 

 Black River or Richmond: Selkirk Island, Lake Winnipeg, Manitoba. 



Orthodesma antiquum Whiteaves. 



Orthodesma antiquum Whiteaves, Ottawa Nat., 22, 1908, p. Ill, pi. 3, fig. 10. 

 Black River (Lowville): Hog Back near Ottawa, Ontario; Aylmer, Quebec. 



Orthodesma approxlmatum Foerste. 



Orthodesma approximatum Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, 



p. 285, pi. 1, fig. 5. 

 Cincinnatian (Pulaski): Chambly, Quebec. 



