646 BULLETIN 02, UNITED STATES NATIONAL MUSEUM. 



Hormotoma gracilis multlvolvls Ulrich and Scofield. 



Hormotoma gracilis var. multivolvis Ulrich and Scofield, Geol. Minnesota, 3, pt. 



2, 1897, p. 1015, pi. 70, figs. 26-29. 

 Richmond (Maquoketa): Spring Valley, Minnesota. 

 Coty pes. —Gat. No. 45858, U.S.N.M. 



Hormotoma gracilis sublaxa Ulrich and Scofield. 



Hormotoma gracilis Aur. sublaxa Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 



1897, p. 1015, pi. 70, figs. 23-25. 

 Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri. 

 Cotypes.—Gat. No. 45859, U.S.N.M. 



Hormotoma iiifrequens (Billings). 



Murchisonia infrequens Billings, Canadian Nat. Geol., 4, 1859, p. 457. 

 Hormotoma inirequens Raymond, Ann. Carnegie Miis., 4, 1908, p. 191, pi. 55, fig. 4. 

 Chazyan (Aylmer): Grand Isle, near Cornwall, Canada. 



Hormotoma latlangularKs Branson. 



Uormotoma latiaugularis Branson, Trans. Acad. Sci. St. Louis, 18, 1909, p. 44, 



pi. 7, figs. 11, 12. ■ 

 Black River (Auburn-Decorah): Auburn, Lincoln County, Missouri. 



Hormotoma(?) major (Hall). 



Murchisonia major Hall, Geol. Lake Superior Land Dist., 2, 1851, p. 209, pi. 26, 



fig8. la-c. — Chambcrlin, Geol. Wisconsin, 1, 1883, p. 167. — Keyes, Missouri 



Geol. Surv., 5, 1894, p. 145, pi. 49, figs. 5a-b. 

 Hormotoma? major Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 1018, 



pi. 71, figs. 5-7.— Grabau and Shimer, N. A. Index Fossils 1, 1909, p. 650, 



fig. 889. 

 Murchisonia bellicincta Owen, Rep. Geol. Surv. Wisconsin, Iowa, and Minnesota, 



1852, pi. 2, fig. 8. 

 Trenton (Pros.'jer and Stcwartville): Western shore of Green Bay, etc., Wisconsin; 



Stewartvillo, Hadcr, etc., ^linnesota; Iowa; Pike County, Missouri. 

 Plesiotype and plastot>jpe.—CAt. Nos. 17903, 458G0, U.S.N.M. 



Hormotoma melaniaformis (Shumard). 



Murchisonia melaniaformis Shumard, 1st and 2d Ann. Rep. Geol. Surv., Missouri, 



pt. 2, 1855, p. 208, pi. C, fig. 13.— Keyes, Missouri Geol. Svnv., 5, 1894, p. 145, 



pi. 49, fig. 3. 

 Hormotoma? melaniaformis Donald, Quart. Joiu-. Geol. Soc. London, 55, 1899, 



p. 262 (gen. ref.). 

 Canadian: Franklin County, Missouri. 



Hormotoma multlvolvls (Billings), 



Murchisonia nuiltivi»Ivis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-6, 



1857, p. 299; Cat. Sil. Foss, Anticosti, Geol. Surv. Canada, 1866, p. 18 (loc. 



ref.). 

 Richmond (English Head): Macaaty Bay, Anticosti. 



Hormotoma obollsca (Whitfield). 



Murchisonia (Fusispira?) obelisca WTiitfield, Bull. Amer. Mus. Nat. Hist., 1, 1886, 



p. 317, pi. 26, figs. 5, 6. 

 Murchisonia obelisca Seely, Vermont State Geol., Rep. 7, 1910. pi. 60, fig. 5. 

 Canadian (Beekmantown): Fort Cassin, Vermont. 



