596 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Helicotoma brock! Foerste. 



Helicotoma brocki Foerste, Bull. Sci. Lab. Denison Univ., 17, 1912, p. 137, pi. 



10, fig. 11; pi. 11, fig. 3. 

 Richmond: Kagawong, Manitoulin Island, Lake Huron. 



Helicotoma declivis Ulrich. 



Helicotoma declivis Safford, Geol. Tennessee, 1869, p. 288 (nom. nud.). Ulrich 



Geol. Minnesota, 3, pt. 2, 1897, p. 1036, pi. 74, figs. 34-38. 

 Stones River (Murfreesboro): Murfreesboro, Tennessee. 

 Cotypes.Csit. No. 46057, U.S.N.M 



Helicotoma eucharis Billings. 



Helicotoma Eucharis Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 249, 



fig. 234a, b. Miller, N. A. Geol. Pal., 1889, p. 405, fig. 677. 

 Chazyan (Quebec-L, M): Table Head, Newfoundland. 



Helicotoma gorgonea Billings. 



Helicotoma Gorgonea Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 248. 

 Canadian (Quebec H): Table Head, Newfoundland. 



Helicotoma granosa Ulrich. 



Helicotoma granosa Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1035, pi. 82, figs. 



32-34. 



Black River (Lowville): High Bridge, Kentucky. 

 Holotype.Czt. No. 45829, U.S.N.M. 



HELICOTOMA LARVATA Salter. See Liospira larvata. 



Helicotoma marginata Ulrich. 



Helicotoma marginata Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1036, pi. 74, fig. 



39. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 963, pi. 



40, fig. 10. 



Richmond (Elkhorn): Near Richmond, Indiana. 

 HQlotype.Gzt. No. 45830, U.S.N.M. 



Helicotoma misera Billings. 



Helicotoma miser Billings, Pal. Fossils, 1, Geol. Surv. Canada, 1865, p. 309. 

 Ozarkian? (Levis erratic): Point Levis, Quebec. 



Helicotoma missouriensis Branson. 



Helicotoma missouriensis Branson, Trans. Acad. Sci. St. Louis, 18, no. 4, 1909, p. 



44, pi. 7, figs. 11-12. 

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



Helicotoma murieata (Salter). 



Helicotoma planulata var. murieata Salter, Geol. Surv. Canada, dec. 1, 1859, p. 



14, pi. 2, fig. 8. 



Helicotoma murieata Miller, N. A. Geol. Pal., 1889, p. 405. 

 Black River (Leray): Allumette Island, Ottawa River, Canada. 



Helicotoma naresii Etheridge. 



Helicotama naresii Etheridge, Quart. Jour. Geol. Soc. London, 34, 1878, p. 602, pi. 



27, fig. 3. 

 Niagaran: Ofiley Island, Arctic America. 



Helicotonia(?) peccatonica Sardeson. 



Helicotoma(?) peccatonica Sardeson, Bull. Minnesota Acad. Nat. Sci., 4, 1896, 



p. 97, pi. 5, figs. 1, 2. 

 Canadian (Shakopee): Near Argyle, Wisconsin. 



