. Bulletin - United States National Museum. Science. EASTERN PROVINCK SOUTHERN REGION SPECIES. 397 were sent me by Mr. Machire; but from what particular locality I know not, (Say.) Jiulimus alternalus, Say, New Harmony Diss., Dec. 30, 1630; Descr., 25; ed. Binnet, 39.âPfeiffek, Mon. Hel. Viv., ii, 221.âW. G. Bixney, Terr. Moll., iv, 126, pi. Ixxs, figs. 1, 3, 18; L. & Sh., i, 200 (1869). BnUmus f7ea/6a/«s, Bixxey, part, Terr. Moll., ii,276, pi. li, a, upper and lower fig., pi. li, &.âNot Say. i^K/n«»s .l/arifT, Albers, Helicecn, 162.âPfkiffer, Proc. Zool. Soc, 1858, 23 ; Mon.
. Bulletin - United States National Museum. Science. EASTERN PROVINCK SOUTHERN REGION SPECIES. 397 were sent me by Mr. Machire; but from what particular locality I know not, (Say.) Jiulimus alternalus, Say, New Harmony Diss., Dec. 30, 1630; Descr., 25; ed. Binnet, 39.âPfeiffek, Mon. Hel. Viv., ii, 221.âW. G. Bixney, Terr. Moll., iv, 126, pi. Ixxs, figs. 1, 3, 18; L. & Sh., i, 200 (1869). BnUmus f7ea/6a/«s, Bixxey, part, Terr. Moll., ii,276, pi. li, a, upper and lower fig., pi. li, &.âNot Say. i^K/n«»s .l/arifT, Albers, Helicecn, 162.âPfkiffer, Proc. Zool. Soc, 1858, 23 ; Mon. Hel. Viv., iii, 350; in Chemnitz, cd. 2, 157, pi. xlviii, tigs. 7,8.âW. G. BiN- NEY,Terr. Moll., iv, 128. BuUnuix IHnneiimms, W. G. Binney, Terr. Moll., iv, 128.âNot Pfeiffer. Tliaiimosliis aJleniaiiis, Tryon, Am. Journ Conch., iii, 171, jjI. xiii,rig. 16 (1867). Tlidtiinostiis l/flr(fl', Tryox, Am. Jonrn. Couch., iii, 172, pl. xiv (lH(i7). Ihilimtdiiii alti-niatus, W. G. Binney, Terr. Moll., v, 388. Texan Sobregion, from Louisiana through Texas into Mexico. It belongs rather to the fauna of Mexico, extending into the Isthmus of Tehuantepec* Found in great numbers upon bushes, the ground be- low them being often covered with dead shells. This species is readily distinguished from the allied forms by its greater soli-lity, its highly polished surface, its ^'^- '^^^â more elongated form, its dark-colored aperture, bordered with the white internal margin of the peritreine, and the tooth-like callus upon the upper portion of the columella. It varies con- siderably in form, being sometimes quite slen- der, at others quite globose. In color it shows every variation from uniform brownish to pure wbite. The aperture, however, is always dark, n. aitcmatus. and has a white, thickened rim within the peristome. It is most at- tractive when ornamented with alternate white and brown longitudinal blotches. There can, I believe, be no doubt that the shell under consideration is w
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