. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 2, Kreid. von oc. Acad. Nat. —HOL.] GASTEROPODA. 405. Fio. 676.—Fuslsplra ventricosa. tciebriformis, Hall, 1871, 24th Rep. N. Y. Mus. Nat. Hist., p. 230, Hud. Riv. Gr. veil tricosi, Hall, 1871, 24th Rep. N. Y. Mus. Nat. Hist., p. 229, Trenton Gr. vittata, Hall, 1847,(Mur- chisonia vi ttata,) Pal. N. Y., vol. 1, p. 181, Tren- ton Gr. Fu sus, Bru- g u i e r e , 1789, Eu- cyc. Mcth. This ge- nus is un- known in
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 2, Kreid. von oc. Acad. Nat. —HOL.] GASTEROPODA. 405. Fio. 676.—Fuslsplra ventricosa. tciebriformis, Hall, 1871, 24th Rep. N. Y. Mus. Nat. Hist., p. 230, Hud. Riv. Gr. veil tricosi, Hall, 1871, 24th Rep. N. Y. Mus. Nat. Hist., p. 229, Trenton Gr. vittata, Hall, 1847,(Mur- chisonia vi ttata,) Pal. N. Y., vol. 1, p. 181, Tren- ton Gr. Fu sus, Bru- g u i e r e , 1789, Eu- cyc. Mcth. This ge- nus is un- known in the Pala?o- zoic rocks. inhabilis,syn. for Macrocliilina primigenia. , Salter, 1859, Can. Org. Rem., Decade 1, p. 13. [Ety. Helix; genus of f'lells; . 248, Quebec Gr. larvata, Salter, 1859, Can. Org. Rem., Decade 1, p. 15, Black Riv. and Tren- ton Grs. misera, Billings, 1865, Pal. Foss., vol. 1, p. 309, Quebec Gr. muricata, Salter, 1859, (H. planulata var. muricata,) Can. Org. Rem., Decade 1, p. 14, Black Riv. and Trenton Grs. naresi, Etheridge, 1878, Quar. Jour. Geo. Soc, vol. 34, p. 602, Up. Sil. perstriata, Billings, 1859, Can. Nat. and Geo., vol. 4, p. 356, Calciferous Gr. planulata, Salter, 1859, Can. Org. Rem., Decade 1, p. 14, Black Riv. and Trenton Grs. proserpina, Billings, 1865, Pal. Foss., vol. 1, j). 247, Quebec Gr. serotina, Nicholson, 1874, Rep. Pal. Ont., p. 120, Up. Held. Gr. spinosa, Salter, 1859, Can. Org. Rem., Dec- ade 1, p. 15, Black Riv. Gr. tennfiseensis, Safford, 1869, Geo. of Tenn. Not defined. 27 tritonia, Billings, 1865, Pal, Foss., vol. 1, p. 247, Quebec Gr. HoLoi'EA, Hall, 1847, Pal. N. Y., vol. 1, p. 109. [Kty. hoios, entire; ope, aperture.] Shell conical, ventricose, more or less oblique, or nearly direct; aperture round, ovate; margin entire; surface marked by fine curved strice lated ; distinguished from Cyclonema by the presence of an umbilicus. Type ri. symmetrica and H. obliqua. antiqua, Vanuxem, 1843, (Littorina a
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