. Bulletin - United States National Museum. Science. A. fidelis. Ag:laia fidelis, Gray. Shell umbilicated, orbicularly subconoid, epidermis light yellow or brownish on the upper surface, with a black or chestnut-colored revolving band visible on the four outer whorls, the lower surface dark chest- nut, sometimes uniformly black; suture dis- tinct, impressed; whorls 7, rounded, spirally striate, with minute, delicate, impressed lines, the strife of increase very distinct, and occa- sionally with rows of tubercles running obliquely to the striae of growth, bearing very distinct raised lines unde


. Bulletin - United States National Museum. Science. A. fidelis. Ag:laia fidelis, Gray. Shell umbilicated, orbicularly subconoid, epidermis light yellow or brownish on the upper surface, with a black or chestnut-colored revolving band visible on the four outer whorls, the lower surface dark chest- nut, sometimes uniformly black; suture dis- tinct, impressed; whorls 7, rounded, spirally striate, with minute, delicate, impressed lines, the strife of increase very distinct, and occa- sionally with rows of tubercles running obliquely to the striae of growth, bearing very distinct raised lines under the ej^idermis, quite like pros- trate hairs; peristome reflected below, simple above, thickened; aperture ovate, banded within ; umbilicus open, a little contracted by the reflection of the peristome; base flattened-convex. Greater di- ameter 34, lesser 30™'°; height, 20°^™. Helix fidelis, Gray, Proc. Zool. Soc, July, 1834, 67.—Pfeiffer, Mod. Hel. Viv., i, 338; in Chemxitz, ed. 2, i, 321, pi. Ivii, figs. 12, 13.—Muller, Syn. Test, anno 1«34 promulg., 8 (1836).—Eeeve, Con. Icon., No. 657 (1852).—W. G. BiNNEY, Pac. R. R. Rep., vi, 111 (1857); Terr. Moll., iv, 14 ; L. & Sh., i, 161 (1869). Helix Nuttalliana, Lea, Am. Phil. Trans., vi, 88, pi. xxiii, fig. 74; Obs., 11, 88 (1839)— Troschel, Arch. f. Nat., 1839, ii, 229.—Binney, Boat. Journ. Nat. His., iii, 369, pi. xii (1840); Terr. Moll., ii, 159, pi. xviii.—De Kay, N. Y. Moll., 46 (1843).—Gould, U. S. Expl. Exped. Moll., 66, fig. 38 (1852). Aglaja fidelis, Tryon, Am. Journ. Conch., ii, 311, 8(1866).—W. G. Binney, Terr. Moll., V, 350. A species of the Oregonian Eegion, found from Humboldt Bay, California, to Vancouver's Island, and eastward to the Cascade Mountains. From Mount Shasta the specimens are fic oi. half as large as usually found. Animal: color dull ocher, slaty towards the tail; coarsely granular upon the neck, but from a line running from the dorsal line, where it issues from the s


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience