BIBLIOGRAPHIC LIST OF GENERA AND BPECIES. 363 



Oyrtodonta? lamellosa Hudson. 



Cyrtodonta? lamellosa Hudson, LUiU. New York State Mus., 80, 1905, p. 287, pi. 4, 



figs. 10-13. 

 Chazyan (Valcour): Valcour Island, Lake Champlain. 



Cyrtodonta leucothea Billings. 



Cyrtodonta Leucothea Billings, Pal. Foss., 1, Geol. Surv. Canada, 1805, p. 46, fig. 

 49 (adv. sheets, 18G2); Geol. Canada, Geol. Siu^. Canada, 18(J3, p. 143, fig. 82. 

 Cypricardites leucothea Miller, N. A. Geol. Pal., 1889, p. 477 (gon. ref.). 

 Black River (Leray): Pauquette Rapids, Ottawa River, Canatla. 



Cyrtodonta normanensis Safford. 



Cyrtodonta Normanensis Safford, Geol. Tennessee, 1869, p. 287 (nom. nud.). 

 Mohawkian: Tennessee. 



Cyrtodonta obesa Ulrich. 



(Vrtodonta obesa Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 542, pi. 39, figs. 10, 11, 



12. 

 Black River: Mercer County, Kentucky; St. Paid and Preston, Minnesota 



(Decorah). 

 Cotypes— Cat. Nos. 46184, 46185, U.S.N.M. 



Cyrtodonta obliqua (Meek and Worthen). 



Cypricardites obliquus Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 311, 



pi. 2, fig. 9a, b. 

 Cyrtodonta obliquus Ulrii-h, Geol. Minnesota, 3, pt. 2, 1897, p. 540, p. 39, figs. 



35, 36. 

 Trenton: Scales Mound, Illinois (Galena); Fillmore County, Minnesota (Prosser). 



Cyrtodonta obtusa (Hall). 



Ambonychia obtusa Hall, Pal. New York, 1, 1847, p. 167, pi. 36, figs. 8a-b. 

 Cyrtodonta obtusa Billings, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, p. 184, 



figs. 13, 14; Canadian Nat. Geol., 3, 1858, p. 436, figs. 13, 14; Geol. Canada, 



Geol. Sui-v. Canada, 1863, p. 147, fig. 101a, b. 

 Posidonomya obtusa Emmons, Amer. Geology, 1, pt. 2, 1855, p. 177. 

 Palseai-ca obtusa Hall, 12th Rep. New York State Cab. Nat. Hist., 1859, p. 65 



(gen. ref.). 

 Cypricai-dites obtusus Miller, N. A. Geol. Pal., 1889, p. 477 (gen. ref.). 

 Trenton: Watertown, New York; Canada. 



Cyrtodonta oviformis (Ulrich). 



Cypricardites oviformis Ulrich, Amer. Geol., 10, 1892, p. 99, pi. 7, figs. 3, 4. 

 Cyrtodonta oviformis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, fig. 46; 



pi. 40, fig. 1. 

 Black River (Platteville): Janesville, Wisconsin. 

 nolotype.—Ca.t. No. 46186, U.S.N.M. 



Cyrtodonta parva Ulrich. 



Cyrtodonta liarvaUlricli, Geol. Minnesota, 3, pt. 2, 1894, p. 541, pi. 39, figs. 24, 25. 

 Trenton (Prosser): Near Fountain, Minnesota. 

 Holotype.— Cat. No. 46187, U.S.N.M. 



Cyrtodonta persimilis Ulrich. 



Cyrtodonta persimilis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 544, pi. 39, figs. 



41, 44. 

 Cypricardites persimilis Miller, N. A. Geol. Pal., 1897, p. 781 (gen. ref.). 

 Black River (Platteville): Minneapolis, Minnesota; Beloit, Wisconsin. 

 Cotypes.— Cat. Nos. 46188, 46189, U.S.N.M. 



