828 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



MONOTRYP A Continued. 



p. 36. Pocta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 319. Grabau 

 and Shinier, N. A. Index Fossils, 1, 1907, p. 137. Hennig, Archiv. fur Zool., 

 4, 1908, p. 46. Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 309, 310; Zittel- 

 Eastman Textb. Pal., 1913, p. 339. 



Ptychonema Hall and Simpson, Pal. New York, 6, 1887, pp. xiv, 14. Miller, 

 N. A. Geol. Pal., 1889, p. 201. Simpson, 14th Rep. State Geol. New York for 

 1894, 1897, p. 583. 



Mono try pa beujanilni Bassler. 



Monotrypa benjamini Bassler, Bull. U. S. Geol. Surv., 292, 1906, pp. 46, 47, pi. 



16, figs. 6-9; pi. 26, fig. 11. 



Clinton: Lockport, New York (Rochester); Osgood, Indiana (Osgood). 

 Cotypes. Cat. Nos. 35500, 44121, U.S.N.M. 



MONOTRYPA CORRUGATA Weller. See Cyphotrypa corrugata. 



MONOTRYPA (CH^BTETES) CUMULATA Ulrich. See Dianulites petropolitana. 



MONOTRYPA? FILIASA Ulrich. See Amplexopora filiosa. 



Monotrypa globosa Weller. 



Monotrypa globosa Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 142, pi. 8, 



figs. 4-6. 

 Trenton: Near Beaver Run, New Jersey. 



Monotrypa incerta Ami. Not recognizable. 



Monotrypa incerta Ami, Canadian Rec. Sci., 5, 1892, p. 101. 

 Trenton: Quebec City, Quebec. 



Monotrypa intabulata Ulrich. 



Monotrypa intabulata Ulrich, Geol. Minnesota, 3, 1893, p. 305, fig. 20. 

 Trenton (Prosser): Goodhue and Fillinore counties, Minnesota. 

 Holotype.Czt. No. 43553, U.S.N.M. 



MONOTRYPA IRREGULARIS Ulrich. See Stigmatella irregularis. 



Monotrypa magna Ulrich. 



Monotrypa magna Ulrich, Geol. Minnesota, 3, 1893, pi. 304, p. 27, figs. 28, 29.- 



Sardeson, Jour. Geol., 9, 1901, p. 5, pi. A, figs. 1, 2. Bassler, Zittel-Eastman 



Textb. Pal., 1913, p. 338, fig. 495. 



Black River (Platteville): Dixon, Illinois; Mineral Point and Beloit, Wisconsin. 

 Holotype.Cat. No. 43555, U.S.N.M. 



Monotrypa? nodosa Ulrich. 



Monticulipora? Ortoni (not Nicholson) Whitfield, Geol. Surv. Wisconsin, 4, 1882, 



p. 251, pi. 11, figs. 7, 8. 



Monotrypa nodosa Ulrich, Geol. Minnesota, 3, 1893, p. 306. 

 Richmond (Maquoketa): Iron Ridge and Delafield, Wisconsin; Savannah, Illinois. 

 Cotypes Cat. No. 43554, U.S.N.M 



Monotrypa osgoodensis Bassler. 



?Astrocerium constrictum Hall, Pal. New York, 2, 1852, p. 123, pi. 34A, figs. 2a-c, 

 3a-e. 



Monotrypa osgoodensis Bassler, Bull. U. S. Geol. Surv., 292, 1906, p. 46, pi. 16, 

 figs. 1-5. 



Clinton: Osgood, Indiana (Osgood); Lockport and Rochester, New York (Roch- 

 ester). 



Cotypes Cat. Nos. 35498, 44118, U.S.N.M. 



