BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 873 



Omphyma rcrrucosa Continued. 



Zaphrentis Bigsbyi Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 92. 

 Niagaran: Drummond's Island and Cockburn Island, Lake Huron; Louisville, 



Kentucky (Louisville); West Tennessee (Brownsport). 



ONCHOLICHAS Schmidt. See Arctinurus Castelnau. 



ONCHOMETOPUS Schmidt. Genotype: O. volborthi Schmidt. 



Onchometopus Schmidt, Mem. 1'Acad. Imp. Sci. St. Petersburg, 8th ser., 6, 1898, 



pp. 11, 12, 28. Raymond, Ann. Carnegie Mus., 7, 1910, p. 63; Trans, and 



Proc. Boy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 115; Zittel-Eastman Textb. 



Pal., 1913, p. 719. 



Onchometopus emoryi (Hall). 



Asaphus emoryi Hall, Rep. U. S. Mexican Bound. Surv., Emory, 1857, pi. 20, 



fig. 5. 



Isotelus Emoryi Walcott, Pal. Univ., 1st ser., fasc. 2, 1903, pi. 28. 

 Richmond:' El Paso Texas. 

 Holotype.Cat. No. 9824, U.S.N.M. 



Onchometopus obtusus (Hall). 



Asaphus? obtusus Hall, Pal. New York, 1, 1847, p. 24, pi. 4 (bis), fig. 14. Em- 



mons, Amer. Geology, 1, pt. 2, 1855, p. 236, pi. 3, fig. 14. 

 Isotelus obtusus Raymond, Ann. Carnegie Mus., 3, 1905, p. 344, pi. 12, figs. 1, 2. 



Grabau and Shinier, N. A. Index Fossils, 2, 1910, p. 291. 

 Onchometopus obtusus Raymond, 7th Rep. Vermont State Geol., 1910, p. 22, pi. 



34, figs. 1, 2; pi. 38, figs. 2-4; Ann. Carnegie Mus., 7, 1910, p. 64, pi. 18, figs. 



2-4. Perkins, Rep. Vermont State Geol., 8th ser., 1912, pi. 18, fig. 2-4. 



Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, sec. 4, 1912, p. 120, 



pi. 3, fig. 2. 

 Chazyan (Day Point-Valcour) : Chazy, Plattsburg, Valcour Island, etc., New 



York; Isle La Motte, Vermont. 



Onchometopus simplex Raymond and Narraway. 



Onchometopus simplex Raymond and Narraway, Ann. Carnegie Mus., 7, 1910, 



p. 51, pi. 16, figs. 6-8. 



Black River: Straight River, Minnesota (Platteville); Franklin Forge, Pennsyl- 

 vania. 



Onchometopus SUSSB (Whitfield). 



Asaphus Susee (Calvin MS.) Whitfield, Geol. Wisconsin, 4, 1882, p. 236, pi. 5, 



fig. 3; pi. 10, fig. 8. Chamberlin, Geol. Wisconsin, 1, 1883, p. 160, fig. 

 Asaphus (Isotelus) Susse Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, 



p. 231. 



Isotelus susse Clarke, Geol. Minnesota, 3, pt. 2, 1894, p. 708, text fige. 10, 11. 

 Onchometopus susse Raymond, Proc. and Trans. Roy. Soc. Canada, 3d ser., 5, 



sec. 4, 1912, p. 118, pi. 2, fig. 1. 



Isotelus florencevillensis Calvin, Ann. Rept. Geol. Surv. Iowa, 13, 1903, p. 46. 

 Richmond: Apple River, Illinois; East Selkirk, Manitoba; Hader and Spring 



Valley, Minnesota; Iowa. 

 Plesiotypes.Cat. Nos. 1176, 41902, U.S.N.M. 



ONCHUS Agassiz. Genotype: 0. murchisoni Agassiz. 



Onchus Agassiz, Rech. Poissons Fossilse, 1837, p. 6. See Hay, Bull. U. S. Geol. 

 Surv. No. 179, 1902, p. 326, for complete bibliography. 



