. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 426 TERRESTRIAL AIR-BREATHING MOLLUSKS. 15. —Gould, in Terr. Moll., PI. 65, 72, PI. LXVII. b. Fig. 2. — W. G. Bin- NEY, Terr. Moll., IV. 35 ; L. & Sh., I. 266 (1869).—Mouse, Joum. Portl. See, I. 29, Pi^. 73; PI. IX. Fig. 74 (1864); Amer. Nat., I. 606, Fig. 46 (1868). — Tryon, Amer. Journ. Conch., II. 230 (1866). —Gould and Bin- KEY, Inv. of Mass. (2), 448 (1870). Succinea obiiqua, teste Binney, 1. c. New England and New York; in Interior and Northern Regions. Generally considered a variety of ^\ ob
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 426 TERRESTRIAL AIR-BREATHING MOLLUSKS. 15. —Gould, in Terr. Moll., PI. 65, 72, PI. LXVII. b. Fig. 2. — W. G. Bin- NEY, Terr. Moll., IV. 35 ; L. & Sh., I. 266 (1869).—Mouse, Joum. Portl. See, I. 29, Pi^. 73; PI. IX. Fig. 74 (1864); Amer. Nat., I. 606, Fig. 46 (1868). — Tryon, Amer. Journ. Conch., II. 230 (1866). —Gould and Bin- KEY, Inv. of Mass. (2), 448 (1870). Succinea obiiqua, teste Binney, 1. c. New England and New York; in Interior and Northern Regions. Generally considered a variety of ^\ obiiqua. It is a thinner and more fragile shell, proportionally more ventricose in form, with a shorter spire and Fig. Lingual membrane of 5. Totteniana (Morse). larger aperture; it has a decided green color, almost unshaded with yellow, while in 5. obiiqua the amber yellow predominates. By Gwynn Jeffreys referred to S. puti'is var. (Ann. Mag. Nat. Hist, 1872). Jaw arcuate, ends blunt; anterior surface with three heavy ribs, modifying the concave and convex margins. (See p. 415.) The lingual membrane is said by Morse, Avhose figure is given above, to have 100 rows of 33—1—33 teeth. The bases of attachment are very narrow, and have a peculiar expansion at their lower inner angles. Succinea campestris, S.\y. Vol. III. PI. LXVII. b, Fig. 1. Shell yellowish-white, or yellowish horn-color, rounded-ovate; periostraca shining, wrinkled; whorls 3, not oblique, the last whorl large and ventricose, the other two constituting the spire; spire short, with acute apex; aperture ample, not much elongated, rounded anteriorly; peristome thin and sharp. Length 15, of aperture 10 mill. Succinea campestris^ Say, Journ. Acad. Nat. Sci. Phila., I. 281 (1817); Nich. Encycl., 3d ed. (1819); Binney's ed., 12. — Ferussac, Tabl. Syst, 31, PI. XI. Fig. 12. — Pfeiffer, Symbolic, II. 56 (excl. syn. Gould) ; Mon. Hel. Viv., II. 524 (excl. do.); III. 15 (excl. sjm. DeKay) ; in Chemnitz,
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