640 BULLETIN 'J2, UNITED STATES NATIONAL MUSEUM. 



Homotrypa richinondensis — Continued. 



Richmond ("Whitewater): Richmond and Versailles, Indiana; Hanover, Oxford, 



etc., Ohio. 

 Cotypes— Cat. No. 41784, U.S.N.M. 



Homotrypa separata Ulrich. 



Homotrj'pa 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. 

 Jlololype.— Cat. No. 43576, U.S.N.M. 



Homotrypa? slmilis 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 soUda. 



Homotrypa spinea Cumings and Galloway. 



Homotrypa spinea Cumin^rs 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 IIope-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. 

 Cotypcs.—C&t. No. 41761, U.S.N.M. 



Homotrypa subramosa Ulrich. 



Homotrj-pa 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'a Textb. Pal. (Engl, ed.), fig. 45L\-C (not D=Homotrypa separata 

 Ulrich) (p. 273).— GraV)au and Shimer, 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 (Decorali) 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 Inslgnis (Ulrich). 



Homotryi)a iiisigni.s Ulrich, llth Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 



1886, p. 82. 

 Homotrj-pa subramosa var. insignis Ulrich, Geol. Minnesota, 3, 1893, p. 239. 

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



Decorali, Iowa. 

 Colypes.—Cat. No. 43998, U.S.N.M, 



Homotrypa tiiberculata Ulrich. 



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

 Black River (Decorah): Cannon Falls, Minnesota. 

 Cotypes.— Cat. No. 43580, U.S.N.M. 



