826 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Monograptus urceolus— Continued. 



Monograptus cfr. urceolus Tornquist, Rastrites and allied species of Monograptus, 



Lund. Univ. Arsskr., n. s., afd. 2, 3, 5, 1907, p. 18, pi. 3, figs. 5-10. 

 Demirastrites urceolus Eisel, Ueber zonenweise Entwick. d. Rastriten u. Demi- 



rastriten i. d. mittelsil. Grapt. Thuringens u. Sachsens, 1911, p. 15, pi. 2, 



figs. 25-32. 

 Silurian: Scotland (Llandovery); twelve miles northeast of Ketchurn, Idaho 



[Ulrich]. 



MONOMORELLA Billings. Genotype: M. prisca Billings. 



Monomorella Billings, Canadian Nat. Geol., n. s., 6, 1871, p. 220; Anier. Jour. Sci., 

 3d ser., 3, 1872, p. 358.— Davidson and King, Ann. Mag. Nat. Hist., 4th ser., 

 10, 1872, p. 248; Geol. Mag., 9, 1872, p. 442; Quart. Jour. Geol. Soc. London, 

 30, 1874, p. 155.— Zittel, Handb. Pal., 1, 1880, p. 667.— Davidson, Mon. 

 British Foss. Brach., 5, Sil. Suppl., 1883, Pal. Soc, p. 218.— Miller, N. A. 

 Geol. Pal., 18S9, p. 354.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, 

 pp. 40, 46; 11th Ann. Rep. New York State Geol., 1894, p. 238.— Koken, 

 Die Leitfossilien, Leipzig, 1896, p. 230, fig. 190, 191.— Grabau and Shimer, 

 N. A. Index Fossils, 1, 1907, p. 190— Sehuchert, Zittel-Eastman Textb. 

 Pal., 1900, p. 306; ibid., 1913, p. 373. 



Monomorella durhainensis Whiteaves. 



Monomorella Durhamensis Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 2, 



1895, p. 57, pi. 9, fig. 1; pi. 15, fig. 1. 

 Niagaran (Guelph): Edge Mills, near Durham, Ontario. 



Monomorella egani Hall and Clarke. 



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

 4C, fig. 16; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 330, pi. 2, 

 fig. 3; 14th Rep. State Geol. New York for 1894, 1897, p. 330, pi. 2, fig. 3. 



Niagaran (Guelph): Near Grafton, Wisconsin. 



Monomorella greenei Hall and Clarke. 



Monomorella grcenii Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 42, 174 

 pi. 4D, figs. 5-10; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 328, 

 pi. 1, figs. 9-14; 14th Rep. State Geol. New York for 1894, 1897, p. 328, pi. 1, 

 figs. 9-14. 



Niagaran (Guelph): Near Grafton, Wisconsin; Rising Sun, Ohio. 



Plastotype.—C&t. No. 49973, U.S.N.M. 



Monomorella kingi Hall and Clarke. 



Monomorella kingi Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 42, 174, 

 pi. 4D, figs. 1, 2; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 329, 

 pi. 2, figs. 1, 2; 14th Rep. State Geol. New York for 1894, 1897, p. 329, pi. 2, 

 figs. 1, 2. 

 Niagaran (Racine?): Near Cedarburg, Wisconsin; Hawthorne, Illinois. 



Monomorella newberryi Hall and Whitfield. 



Monomorella newberryi Hall and Whitfield, Pal. Ohio, 2, 1875, p. 131, pi. 7, figs. 



1, 2.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4C, figs. 1, 2. 

 Niagaran (Guelph): Genoa, Ohio. 



Monomorella noveboracum Clarke and Ruedemann. 



Monomorella noveboracum Clarke and Ruedemann, Mem. New York State Mus., 



5, 1903, p. 39, pi. 2, figs. 1-6; pi. 3, figs. 1-7; pi. 4, fig. 38. 

 Niagaran (Guelph): Oak Orchard Creek, near Shelby, New York. 



