640 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. 



Homotrypa richmondensls Continued. 



Richmond (White water) : Richmond and Versailles, Indiana; Hanover, Oxford, 



etc., Ohio. 

 Cotypes. Cat. No. 41784, U.S.N.M. 



Homotrypa separata Ulrich. 



Homotrypa separata Ulrich, Geol. Minnesota, 3, 1893, p. 237, pi. 19, figs. 17-20. 



Bassler, Zittel-Eastman Texb. Pal., 1913, p. 332, fig. 477d. 

 Black River (Decorah): Minneapolis, Chatfield, etc., Minnesota. 

 Holotype.C&t. No. 43576, U.S.N.M. 



Homotrypa? similis Foord. 



Homotrypa similis Foord, Contr. Micro-Pal. Cambro-Sil., 1883, p. 10, pi. 2, 

 figs. 2-2d. Ulrich, Geol. Minnesota, 3, 1893, p. 242, pi. 20, figs. 28-33. 

 Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 185-187. 

 Trenton: Ottawa, Ontario; St. Paul, Cannon Falls, etc., Minnesota. 

 Middle Ordovician (Wassalem) : Uxnorm, near Reval, Esthonia, Russia. 

 / Plesiotypes. Cat. Nos. 43575, 57273, U.S.N.M. 



HOMOTRYPA SOLIDA Nickles and Bassler. See Eridotrypa solida. 



Homotrypa spinea Cumings and Galloway. 



Homotrypa spinea Cumings and Galloway, 37th Ann. Rep. Dep. Geol. Nat. Res. 



Indiana, 1913, p. 79, pi. 11, figs. 1-lc; pi. 12, figs. 1-ld. 

 Maysville (Mount Hope-Fairmount) : Big Four Railroad, near Guilford, Indiana. 



Homotrypa splendens Bassler. 



Homotrypa splendens Bassler, Proc. U. S. Nat. Mus., 26, 1903, p. 587, pi. 25, figs. 



11-14. 



Richmond (Fernvale): Wilmington, Illinois. 

 Cotypes. Cat. No. 41761, U.S.N.M. 



Homotrypa subramosa Ulrich. 



Homotrypa subramosa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 

 1886, p. 81; Geol. Minnesota, 3, 1893, p. 239, pi. 19, figs. 21-28. Ulrich, 

 Zittel's Textb. Pal. (Engl. ed.), fig. 451A-C (not D=Homotrypa separata 

 Ulrich) (p. 273). Grabau and Shiiner, N. A. Index Fossils, 1, 1907, p. 128, 

 fig. 186c. Bassler, Zittel-Eastman Textb. Pal., 1913, p. 332, fig. 477a-c; 

 Bull. U. S. Nat. Mus., 77, 1911, pp. 187-189, figs. 99, 100. 



Black River (Decorah) and Trenton (Prosser): St. Paul, Minneapolis, etc., 

 Minnesota; Decorah, Iowa. 



Middle Ordovician (Kuckers) : Reval, Esthonia, Russia. 



Cotypes and plesiotypes. Cat. Nos., 43570, 57274, U.S.N.M. 



Homotrypa subramosa insignis (Ulrich). 



Homotrypa insignis Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 



1886, p. 82. 



Homotrypa subramosa var. insignis Ulrich, Geol. Minnesota, 3, 1893, p. 239. 

 Trenton (Prosser): St. Paul and Goodhue and Fillmore Counties, Minnesota. 



Decorah, Iowa. 

 Cotypes.- Oat. No. 43998, U.S.N.M. 



Homotrypa tuberculata Ulrich. 



Homotrypa tuberculata Ulrich, Geol. Minnesota, 3, 1893, p. 240, fig. 14. 

 Black River (Decorah) : Cannon Falls, Minnesota. 

 Cotypes Oat. No. 43580, U.S.N.M. 



