390 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM. 



Dekayella prsenuntta multipora Ulrich. 



Dekayella prsenuntia var. multipora Ulrich, Geol. Minnesota, 3, 1893, p. 272, 



pi. 23, figs. 44-47. 

 Black River (Decorah): Minneapolis, St. Paul, and Goodhue and Fillmore 



Counties, Minnesota. 

 Holotype.— Cat. No. 43531, U.S.N. M. 



Dekayella prsenuntia naevigera Uhich. 



Dekayella prsenuntia var. naevigera Ulrich, Geol. Minnesota, 3, 1893, p. 271. — 



Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207. 

 Black River (Decorah) : Fillmore County, Minnesota. 

 Middle Ordovician (Wassalem) : Esthonia, Russia. 

 Holotype— Csit. No. 43532, U.S.N.M. 



Dekayella praenuntia simplex Ulrich. 



Dekayella prienuntia var. simplex Ulrich, Geol. Minnesota, 3, 1893, p. 271, pi. 



23, figs. 39-42.— Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 207, fig. 111. 

 Black River (Decorah): Minneapolis and St. Paul, Minnesota 

 Middle Ordovician (Wassalem) : Esthonia, Russia. 

 Cotypes.— Cat. No. 43529, U.S.N.M. 



Dekayella robusta Foord. See Dekayella ulrichi. 



Dekayella singularis (Ulrich). 



Heterotrypa singularis Ulrich, Geol. Surv. Illinois, 8, 1890, p. 415, pi. 37, figs. 3-3e; 



Geol. Minnesota, 3, 1893, p. 268.— Simpson, 14th Ann. Rep. State Geol. New 



York for 1894, 1897, fig. 147 (p. 579). 

 Monticulipora singularis J. F. James, Jour. Cincinnati Soc. Nat. Hist., 18, 1895, 



p. 77. 

 Dekayella singularis Ulrich and Bassler, Smiths. Misc. Coll. Quart., 47, 1904, 



p. 27 (gen. ref.). 

 Richmond (Fernvale): Wilmington, Illinois; Tennessee; Wisconsin. 

 Sections of cotype.— Cat. No. 43750, U.S.N.M. 



Dekayella trentonensis (UMch). 



Dekayia trentonensis Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1883, p. 151, 



pi. 6, figs. 6, 6a; Geol. Minnesota, 3, 1893, p. 274. 

 Dekayella trentonensis Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, 



p. 227.— Nickles, Bull. Kentucky Geol. Surv., 5, 1905, p. 42, pi. 1, fig. 3. 

 Trenton: Burgin and Frankfort, Kentucky (Wilmore); St. Paul and Cannon 



Falls, Minnesota (Prosser). 

 Holotype.— Cat. No. 43660, U.S.N.M. 



Dekayella ulrichi (Nicholson). 



Chaetetes Fletcheri (not Milne-Edwards and Haime) Nicholson, Quart. Jour. 

 Geol, Soc. London, 30, 1874, p. 504, pi. 29, figs. 6, 6a; Pal. Ohio, 2, 1875, 

 p. 197, pi. 21, figs. 7, 7a; Ann. Mag. Nat. Hist., 4th ser., 18, 1876, p. 90, pi. 5, 

 fig. 14.— Quenstedt, Roehren- und Sternkorallen, 1891, p. 83, pi. 146, fig. 27. 



Monticulipora (Heterotrypa) Ulrichii Nicholson, Genus Monticulipora, 1881, p. 

 131, fig. 22. 



Monticulipora ulrichii Hall, 12th Ann. Rep. Indiana Geol. Nat. Hist., 1883, p. 

 249, pi. 11, fig. 10. — James and James, Jour. Cincinnati Soc. Nat. Hist., 10, 

 1888, p. 179.— James, ibid., 16, 1894, p. 201. 



Dekayella ulrichi Ulrich, Jour. Cincinnati Soc. Nat. Hist., 7, 1883, pp. 91, 153. — 

 Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 227.— Cumings, 

 Amer. Geol., 28, 1901, p. 374.— Nickles, Bull. Kentucky Geol. Surv., 5, 



