BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 827 



Moiiomorella orbicularis Billings. 



Monomorella orbicularis Billings, Canadian Nat. Geol., n. s., 6, 1871, p. 221; 



Amer. Jour. Sci., 3d ser., 3, 1872, p. 359. — Davidson and King, Quart. Jour. 



Geol. Soc. London, 30, 1874, p. 158, pi. 17, fig. 10— Whiteavee, Pal. Fobs., 



Geol. Surv. Canada, 3, pt. 2, 1895, p. 56 (loc. occ). 

 Monomorella cf. orbicularis Hall and Clarke, Pal. Now York, 8, pt. 1, 1892, pi. 



4C, figs. 3-5. 

 Niagaran (Guelph): Hespelar, Ontario; near Grafton, Wisconsin. 



Monomorella ortoni Hall and Clarke. 



Monomorella ortoni Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 42, 175, 

 pi. 4C, figs. 14, 15; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 330, 

 pi. 2, figs. 4, 5; 14th Rep. State Geol. New York for 1884, 1897, p. 330, pi. 2, 

 figs. 4, 5. 



Niagaran (Guelph): Rising Sun, Wood County, Ohio. 



Monomorella ovata Whiteaves. 



Monomorella ovata Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, 1884, p. 5, pi. 



2, fig. 1; pi. 8, fig. 1.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 42, 

 pi. 4D, figs. 13-15. — Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 

 1895, p. 56 (loc. occ). 



Niagaran (Guelph) : Durham, Ontario. 



Monomorella ovata lata AYhiteaves. 



Monomorella ovata var. lata Whiteaves, Geol. Surv. Canada, Pal. Fos., 3, 1884, 

 p. 6, pi. 2, fig. 2; pi. 8, fig. 2.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, 

 pi. 4, figs. 11, 12; pi. 4C, figs. 17, 18.— Whiteaves, Pal. Foss., Geol. Surv. 

 Canada, 3, pt. 2, 1895, p. 56. 



Niagaran (Guelph): Durham, Ontario; ?Hawthorne, Illinois. 



Monomorella prisca Billings. 



Monomorella prisca Billings, Canadian Nat. Geol., n. s., 6, 1871, p. 221; Amer. 

 Jour. Sci*., 3d scr., 3, 1872, p. 359. — Davidson and King, Quart. Jour. Geol. 

 Soc. London, 30, 1874, p. 156, pi. 17, figs. 5-8. — Nicholson, Pal. Prov. Ontario, 

 1875, p. 68, fig. 38.— Zittel, Handb. Pal., 1, 1880, p. 668, fig. 492.— Miller, 

 N. A. Geol. Pal., 1889, p. 354, fig. 585.— Hall and Clarke, Pal. New York, 

 8, pt. 1, 1892, pi. 4C, figs. 6-13.— Whiteaves, Pal. Foss., Geol. Surv. Canada, 



3, pt. 2, 1895, p. 56 (loc. occ). — Huene, Verh. d. Russ.-Kais. Mineral. Gesell. 

 zu St. Petersb., 2d ser., 38. 1900, p. 194, fig. 3.— Grabau and Shimer, N. A. 

 Index Fossils, 1, p. 190, fig. 225b-c 



Niagaran (Guelph): Hespelar and Flora, Ontario; Rising Sun, Wood County, 

 Ohio; Hawthorne, Port Byron, and Cicero, Illinois. 



Monopeion Barrande. See Monograptus Geinitz. 



MONOTRYPA Nicholson. Genotype: Chaetetes undulatus Nicholson. 



Monotrypa Nicholson, Pal. Tabulate Corals, 1879, p. 293.— Zittel, Handb. Pal., 1, 

 1880, p. 616.— Nicholson, Genus Monticulipora, 1881, pp. 102, 168.— Ulrich, 

 Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 153. — Foord, Contr. Micro-Pal. 

 Cainbro-Sil., 1883, p. 14. — Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 

 472.— Waagen andWentzel, Pal. Indica, 13th ser., 1886, pp. 875, 876.— Hall 

 and Simpson, Pal. New York, 6, 1887, p. 13.— Miller, N. A. Geol. Pal., 1889, p. 

 196. — Ulrich, Geol. Surv. Illinois, 8, 1890, p. 379. — Rominger. Amer. Geol., 6, 

 1890, pp. 117, 119.— Ulrich, Geol. Minnesota, 3, 1893, p. 303; Zittel's Textb. 

 Pal. (Eng. ed.), 1896, p* 104; ibid., 1897, p. 275— Simpson, 14th Ann. Rep. 

 State Geol. New York for 1894, 1897, p. 581.— Grabau, Bull. Buffalo Soc. Nat. 

 Sci., 6, 1899, p. 136.— Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, 

 84243°— Bull. 92— vol 2—15 8 



