. Bulletin - United States National Museum. Science. 128 A MANUAL OF AMERICAN LAND SHELLS. Arioiita Towiisendiaiia, Lea. Shell umbilicated, depressed-globose; epidermis yellowish and browu- Fig. 100. ish horn color, more or less intermixed 5 sutnre distinct; whorls 5J. with minute, imi)ressed, lon- gitudinal strife, which can scarcely be traced by the eye, and coarse, oblique wrinkles and strisej body-whorl large, voluminous, rough, and corru- A. Townsendiana. gated', apcrture rather large, somewhat rounded; peristome white, fully reflected at the base and but partially so to- wards its superi
. Bulletin - United States National Museum. Science. 128 A MANUAL OF AMERICAN LAND SHELLS. Arioiita Towiisendiaiia, Lea. Shell umbilicated, depressed-globose; epidermis yellowish and browu- Fig. 100. ish horn color, more or less intermixed 5 sutnre distinct; whorls 5J. with minute, imi)ressed, lon- gitudinal strife, which can scarcely be traced by the eye, and coarse, oblique wrinkles and strisej body-whorl large, voluminous, rough, and corru- A. Townsendiana. gated', apcrture rather large, somewhat rounded; peristome white, fully reflected at the base and but partially so to- wards its superior part, thickened and a little projecting internally in the base of the aperture; umbilicus open, deep, a little contracted by the reflection of the peristome; h-r.^e convex and turgid. Greater di- ameter 29, lesser 24™'".; height, 10""". Helix Toicnsendiana, Lea, Trans. Am. P'lil. Soc, vi, 99, pi. xxiii, fig.^0 (1840); Obs., ii, 99 (1^39); in Troschel's 'Arch. f. Nat., 1839, ii, 221.—Binney, Bost. Journ. Nat. Hist., iii, 371, pi. xiii ; Terr. Moll., ii, 161, pi. xix.—De Kay, N. y. Moll., 46 (1843).—Pfeiffer, Mon. Hel. Viv., i, 341; in Chemnitz, ed. 2, i, 323, pi. Ivii, figs. 10, 11 (1846).—Reeve, Con. Icon.,62,''i (1852).—Gould, U. S. Expl. Exp. Moll., 66, fig. 36 (1852).—W. G. Binney, Terr. Moll., iv, 15; L. & Sh., i, 164 (1869).—Bland, Ann. N. Y. Lye, vii, 362. Mcsodon Toumsendiana, Tryon, Am. Journ. Conch., iii, 46, pi. viii, fig. 8, var. tig. 6. Helix pcdestris, Gould formerly. See Otia, 243. Helix riiida, Gould formerly. ^ Helixptychophora, A. D. Brown, Journ. de Conch., 3d series, x, 392, Oct., 1870. Jrionta Totvnsendiana, W. G. BinneY, Terr. Moll., v, 355. A species of the Oregonian Eegion; it also passes the Cascade Mount- ains into the Interior Province, and along the mountains extends southeasterly into Idaho and Montana. 1 doubt its existence in Cali- fornia at Crescent City, as stated in Terr. Moll., V. Animal corpule
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