. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. F(iT.—] GASTEROPODA. 426 , Whitfield, 1889, Bull. Am. Mus. Nat. Hist., , p. 6-', Ciilcifer- 0118 Gr. rot 11 liforme, Meek, 1870, Proc. Acad. Nat. Sci., p. 01, and U. S. (ieo. Siir. 40th Parallel, vol. 4, p. 18, Calcifurous Gr. rotuloides. Hall, 1H47, (Pieiirotoni in rot- uloides,) Y.,vol. 1, p. 17:i, Tren- ton (ir. stainineum, Hall, 1847, Pal. N. Y., vol. 1, p. 20, Cha/.y Qr. Rtriatmn, Emm
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. F(iT.—] GASTEROPODA. 426 , Whitfield, 1889, Bull. Am. Mus. Nat. Hist., , p. 6-', Ciilcifer- 0118 Gr. rot 11 liforme, Meek, 1870, Proc. Acad. Nat. Sci., p. 01, and U. S. (ieo. Siir. 40th Parallel, vol. 4, p. 18, Calcifurous Gr. rotuloides. Hall, 1H47, (Pieiirotoni in rot- uloides,) Y.,vol. 1, p. 17:i, Tren- ton (ir. stainineum, Hall, 1847, Pal. N. Y., vol. 1, p. 20, Cha/.y Qr. Rtriatmn, Emmons, 1842, (Madurea stri- ata,) (Jen. Kep. N. Y., p. 31_', and Pal. N. Y., vol. 1, p. 28, Chuzy Fk). 710. -Uotella Fio. 709.—RaphUtoina striatum. Hubplaniim, Shumard, 18()3, Trans. St. FiOiiis Acad. Sc'i., vol. 2, p. 100, Calcifer- 0U8 Gr. Hiibtilwtriatum, Hall, 1847, (Pleurotomaria Bubtildtriata,) Pal. N. Y., vol. 1, p. 172, Trenton Gr. trochisciim. Meek, 1870, (Euomphalus trochiscus,) Proc. Acad. Nat. Soi., p. 01, and Geo. Sur. W. 100th Men, vol. 4, p. 77, Calciferous or Trenton Gr. RoTELLA, Lamarck, 1822, Hist. Nat. Vert., vol. 7, p. 6. [Ety. diminutive of rola, a wheel.] Lenticular, pol- ished ; spire depressed; base callous, lingual teeth 13; nncini, nu- merous, subequal. Type R. vestiaria. verruculifera, White, i882, Kep. Invert. Foss., New Mexico, p. xxxi, Coal Meas. ScfivoGYKA, Whitfield, 1878, Ann. Rep. Geo. Sur. Wis., p. 01, and Geo. Wis., vol. 4, p. 198. [Ety. scflfi'tts, toward the left; gurus, circle.] Sinistral, spire elevated, volutions rounded ; umbilicus open, broad, no callus; peristome en- tire, uniting with the volution on the inner side and spreading externally. Type S. swezpyi. elevata, Whitfield, 1878, Ann. Rep. Geo. Sur. Wis., p. 02, and Geo. Wis., vol. 4, p. 199, Low. Mag. Gr. obliqua. Whitfield, 1878, Ann. Rep. Geo. Sur. Wis., p. 63, and Geo. Wis., vol. 4, p. 199, Low. Mag. Gr. swezeyi. Whitfield, 1878, Ann. Rep. Geo.
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