. Bulletin - United States National Museum. Science. 192 A MANUAL OF AMKh'KWN LAND 8lTELL«. Pupa simplex, Gould, Bo8t. Journ. Nat. Hist., iii, 403, pi. iii, fig. 21 (1840); iv, ;)') (1843); InvertPbratn, 190, fig. 1-21 (1841).âPfeiffer, Mon. Hcl. Viv., ii. 302.âDeKay, N. Y. MolL, r)2, pi. xxxvi, fig. :M7 (1843).âBinney, Terr. Moll., ii, 343, 1)1. Ixxii, fig. 3. Vertigo aiviplex, Stimpson, Shells of New England, 53 (no descr.).âW. (J. Binnky, Terr. Moll., iv, 148; v, 219; L. & Sh., i, 254 (1869).âMokse, Amer. Nat., i, 670, figs. 67, 6-<(1868).âTryon, Amer. Jonrn. Conch., i
. Bulletin - United States National Museum. Science. 192 A MANUAL OF AMKh'KWN LAND 8lTELL«. Pupa simplex, Gould, Bo8t. Journ. Nat. Hist., iii, 403, pi. iii, fig. 21 (1840); iv, ;)') (1843); InvertPbratn, 190, fig. 1-21 (1841).âPfeiffer, Mon. Hcl. Viv., ii. 302.âDeKay, N. Y. MolL, r)2, pi. xxxvi, fig. :M7 (1843).âBinney, Terr. Moll., ii, 343, 1)1. Ixxii, fig. 3. Vertigo aiviplex, Stimpson, Shells of New England, 53 (no descr.).âW. (J. Binnky, Terr. Moll., iv, 148; v, 219; L. & Sh., i, 254 (1869).âMokse, Amer. Nat., i, 670, figs. 67, 6-<(1868).âTryon, Amer. Jonrn. Conch., iii, 310 (1868).â and Bixxey, Inv. of Mass., ed. 2. 444 (1870). Canada and New Englaud; a species of the Nortbein Eegioii. Animal dark gray above, light gray and pellucid below; foot mod- erately long, trilobate anteriorly, the middle lobe minnte; eye-pednncles usually clavate, sometimes very decidedly ; no tentacles; sliell carrie«l perpendicularly, or even inclined forwards ; active in movement. Eeferred to V. edentula, Drap., by Gwyn Jeffreys (Ann. Mag. Nat. Hist., 1872, 246). Vertigo veiitricosa, Morse. Shell umbilicate, ovate-conic, smooth, polished; apex obtuse; suture ^iG-196. deep; whorls 4, convex; aperture semicircu- lar, with 5 teeth, one prominent on the parie- tal margin, two smaller on the columellar mar- gin, and two prominent within, contracting the aperture at thebase; peristome widely reflected, the right margin ilexuose, within thickened Vertigoventricosa. aud colorcd. Length, .07 inch; breadth, .015 inch. (Morse.) Isthmia ventricona, Morse, Ann. N. Y. Lye, viii, 1, figs. 1-3 (Nov., 1865). Vertigo ventricosa, Morse, Amer. Nat., i, 669, figs. 61,62 (1868).âW. G. Binxey, L. & Sh., i, 253 (1869); Terr. Moll., v, 214.âTryox, Amer. Jonrn. Conch., iii, 310 (1868).âGould and Binxey, Inv., 443, fig. 705 (1870). Maine, New Hampshire, aud New York; a species of the Northern Eegion. I have not seen this species. Mr. Morse says it has been
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