. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 672.—Eccyllomplialus dlstans. distans, Billings, 1865, Pal. Foss., vol. 1, p. 249, Quebec Gr. eboracensis, Hall, 1861, (Euomphalus eboraceusis,) 15th Rep. N. Y. Mus. Nat. Hist, p. 55, and Pal. N. Y., vol. 5, pt. 2, p. 61, Ham. Gr. gyroceras, Roemer, 1852, (Euomphalus gyroceras,) Kreid. von Texas, p. 91, Silurian, intortus, Billings, 1861, Can. Nat. and Geol., vol. 6, p. 321, Quebec Gr. laxiis, Hall, 1861, (Eu
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 672.—Eccyllomplialus dlstans. distans, Billings, 1865, Pal. Foss., vol. 1, p. 249, Quebec Gr. eboracensis, Hall, 1861, (Euomphalus eboraceusis,) 15th Rep. N. Y. Mus. Nat. Hist, p. 55, and Pal. N. Y., vol. 5, pt. 2, p. 61, Ham. Gr. gyroceras, Roemer, 1852, (Euomphalus gyroceras,) Kreid. von Texas, p. 91, Silurian, intortus, Billings, 1861, Can. Nat. and Geol., vol. 6, p. 321, Quebec Gr. laxiis, Hall, 1861, (Euomphalus laxus,) loth Rep. N. Y, Mus. Nat. Hist., p. 54, and Pal. N. Y., vol. 5, pt. 2, p. 60, Up. Held. Gr. paradoxus, Winchell, 1863, (Phanerotinus paradoxus,) Proc. Acad. Nat. Sci., p. 21, and Pal. N. Y., vol. 5, pt. 2, p. 60, Mar- shall Gr. priscus, Whitfield, 1889, Bull. Am. Mus. Nat. Hist., vol. 2, p. 46, Calciferous Gr. spiralis, Billings, 1861, Can. Nat. and Geol., vol. 6, p. 321, Quebec Gr. superbus, Billings, 1865, Pal. Foss., vol. 1, p. 250, Quebec Gr. undulatus. Hall, 1861, Geo. Rep. Wis., p, 37, Trenton Gr. volutatus, Whitfield, 1886, Bull. Am. Mus. Nat. Hist., vol. 1, p. 314, Birdseye Gr. EoTRocHus, Whitfield, 1882, Bull. Am. Mus. Nat. Hist., p. 77. [Ety. eoi, dawn;. Fl« 673.—Eotiochus concuviis. Trochus, a genus.] Conical above, flat or concave beneath, and broadly and deeply umbilicated; aperture very ob- lique, and the outer angle of volutions strongly carinated; surface ornamenta- tion unlike on the upper and lower parts. Type E. concavus. Hall, 1858, (Pleurotomaria con- cava,) Trans. Alb. Inst., vol. 4, p. 24, and Bull. Am. Mus. Nat. Hist., p. 78, Warsaw Gr. Eulima, Risso, 1826, His- toire Naturelle des Principales, p. 123. Not an American Palaeozoic genus. peracuta, see Polyphemopsis peracuta. EuNEMA, Salter, 1859, Can. Org. Rem., Dec- ade 1, p. 24. [Ety. eu, beautiful; nema, line.] Turbinate, thin; few angular whorls, strong concentric ri
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