1148 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Schmidtella fncompta Ulrich. 



Schmidtella incompta Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 642, pi. 45, figs. 

 27, 32-33. 

 ' Black River (Decorah) : Fountain, Minnesota. 

 Cotypes.— Cat. No. 41298, U.S.N. M. 



Schmidtella incompta subaequalis Ulrich. 



Schmidtella incompta suboequalis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 642, 



pi. 43, figs. 39-41. 

 Trenton (Prosser) : Near Cannon Falls, Minnesota. 

 Holotype.— Cat. No. 41297, U.S.N. M. 



Schmidtella sublenticxilaris (Jones). 



Polycope sublenticularis Jones, Quart. Jour. Geol. Soc. London, 46, 1890, p. 550, 



pi. 21, figs. 6a, b. 

 Richmond (English Head and Charleton) : English Head, Anticosti. 



Schmidtella subrotunda Ulrich. 



Schmidtella subrotunda Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 643, pi. 45, 



figs. 39-42. 

 Black River (Decorah) : Minneapolis, Minnesota. 

 Cotypes.— Cat. No. 41300, U.S.N.M. 



Schmidtella umbonata Ulrich. 



Schmidtella umbonata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 641, pi. 45, figs. 

 36-38.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 343, figs. 1656r-t. 

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

 Cotypes.— Cat. No. 41301, U.S.N.M. 



Schmidtia Zittel. See Dicellomus Hall. 



SCHR<EDEROCERAS Hyatt. Genotype: Lituites angulatum Saeman. 



Schrcederoceras Hyatt, Proc. Amer. Phil. Soc, 32, 1894, p. 458.— Miller, N. A. 

 Geol. Pal., 2d App., 1897, p. 777.— Ruedemann, Bull. New York State Mus., 

 90, 1906, p. 475.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 70. 



Schrcederoceras cassinense (Whitfield). 



Lituites eatoni var. cassinensis Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, 



p. 332, pi. 32, fig. 2.— Seely, Vermont State Geol. Rep., 7, 1910, pi. 54. 



fig. 2. 

 Schrcederoceras cassinense Hyatt, Amer. Phil. Soc. Proc, 32, 1894, p. 473, pi. 6, 



figs. 36-38; pi. 7, figs. 4-6.— Ruedemann, Bull. New York State Mus., 90, 1906, 



p. 476, pi. 20, figs. 1, 2, figs. 35-36.— Grabau and Shimer, N. A. Index Fossils, 



2, 1910, p. 71. 

 Canadian (Beekmantown): Fort Cassin, Vermont; Valcour, New York. 

 Plesiotypes.— Cat. No. 25661, U.S.N.M. (Hyatt). 



Schrcederoceras eatoni (Whitfield). 



Lituites eatoni Whitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, p. 331, pi. 28, 



figs. 5-7; pi. 32, fig. 1.— Seely, Vermont State Geol. Rep., 7, 1910, pi. 54. 

 Discoceras eatoni Schroder, Pal. Abhandl. von Dames and Kayser, neue folge, 1, 



5, Heft 4, Jena, 1891, p. 22. 

 Schrcederoceras eatoni Hyatt, Amer. Phil. Soc Proc, 32, 1894, p. 470, pi. 6, figs. 



28-35; pi. 7, figs. 7-8.— Ruedemann, Bull. New York State Mus., 90, 1906, 



pp. 453, 476, pi. 20, figs. 3-4; pi. 23, fig. 1— Grabau and Shimer, N. A. 



Index Fossils, 2, 1910, p. 70, figs. 1280, 1281. 

 Canadian (Beekmantown): Fort Cassin, Vermont; Valcour, New York. 

 Plesioty pes. —Cat. No. 25660, U.S.N.M. (Hyatt). 



