. Bulletin - United States National Museum. Science. 21C) A MANUAL OF AMKRIOAN LAND SHELLS. deflection within the aperture; upper margin of tlie peristome acuf6, scarcely reflected, and partially appressed to the body-whorl, with a tooth-like callus within, having an almost obsolete notch in the center; with an internal transverse tubercle on the base of the shell. Greater diameter 9, lesser 8"™; height, 5"™. HeliJC Edvardsi, Bland, Ann. N. Y. Lye, vi, 277, pL ix, figs. 14-16 (1858).—W. G. BiNNEY, Terr. Moll., iv, 63, pi. Ixxix, figs. 7-9; L. & Sh., i, 115 (1869).—Pfeiffer
. Bulletin - United States National Museum. Science. 21C) A MANUAL OF AMKRIOAN LAND SHELLS. deflection within the aperture; upper margin of tlie peristome acuf6, scarcely reflected, and partially appressed to the body-whorl, with a tooth-like callus within, having an almost obsolete notch in the center; with an internal transverse tubercle on the base of the shell. Greater diameter 9, lesser 8"™; height, 5"™. HeliJC Edvardsi, Bland, Ann. N. Y. Lye, vi, 277, pL ix, figs. 14-16 (1858).—W. G. BiNNEY, Terr. Moll., iv, 63, pi. Ixxix, figs. 7-9; L. & Sh., i, 115 (1869).—Pfeiffer, Mai. Bliitt., 1859, 13. Stenotrema Edwardsi, Tryon, Amer. Jonrn. Conch., iii, 59 (1867). Stenotrema Edvardsi, W. G. Binney, Terr. Moll., v, 293. Mountains of Fayette or Greenbrier County, W, Virginia; Laurel and Whitley Counties, Kentucky. A species of the Cumberland Snbregion. This species is allied to, or rather intermediate between, harbigerum and Mrsutuni, Say, the former connecting spinosum with fraternum. It is smaller, more elevated, less acutely carinated, and readily distin- guished from 8. harbigerum by the partially ai)i)ressed, notched peri- stome and the different character of the epidermis. In barbigerum the attached, hair-like epidermidal processes are i^roduced at the sntures and carina into cilia, which are entirely wanting in this species. The same processes, though less numerous and sometimes almost obsolete, are observable at the base of the former, while in the latter the basal epidermis approaches in character to that of Triodopsispalliata. The deep characteristic notch in S. hirsutum is considerably less developed in S. Edvardsi, and the callus which connects the parietal tooth with the upper margin of the peristome in the former does not exist in the latter. In the general character of the peristome the species under consideration resembles S. hirsutum, while barbigerum is in that partic- ular more appropriately compared -with fraternum, Say. J
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