. Bulletin - United States National Museum. Science. 216 A MANUAL OF AMEKICAN LAND SHELLS. Z. intertextm (Terr. Moll., V, Plate II, Fig. L) has about 61-1-61 teeth on its lingual membrane; there are 12 j)erfect laterals. Another specimen has 45-1-55, with 12 laterals. Zoiiitcs subplaniis, Binkey. Shell flattened, planulate above and beneath; epidermis brownish or smoky horn color, shining; whorls 5i, those nearest the apex striated transversely with very minute and delicate wrinkles; suture distinct, not much impressed; aperture transverse, not expanded, the plane of the aperture mak- ing near
. Bulletin - United States National Museum. Science. 216 A MANUAL OF AMEKICAN LAND SHELLS. Z. intertextm (Terr. Moll., V, Plate II, Fig. L) has about 61-1-61 teeth on its lingual membrane; there are 12 j)erfect laterals. Another specimen has 45-1-55, with 12 laterals. Zoiiitcs subplaniis, Binkey. Shell flattened, planulate above and beneath; epidermis brownish or smoky horn color, shining; whorls 5i, those nearest the apex striated transversely with very minute and delicate wrinkles; suture distinct, not much impressed; aperture transverse, not expanded, the plane of the aperture mak- ing nearly a right angle with the plane of the base of the shell; peristome simple, thin, acute; base flattened, um- bilical region a little impressed; umbilicus small, round, zonites subpianus. ^nd dccp, uot exhibiting the volutions. Greater diameter 20, lesser 16°^'"; height, 6'°'". Helix suhplana, Binney, Bost. Journ. Nat. Hist., iv, part i, cover, p. 3 (1842); iv, 241 (1842); Terr. Moll., ii, 229, pi. xxxiii.—Pfeiffer, Mon, Hel. Viv., i, 112.— W. G. BiNNEY, Terr. Moll., iv, 110. JTi/alina suhi^lana, Tryon, Am. Jouru. Conch., ii, 250 (1866). Zonites subpianus, W. G. Binney, L. & Sli., i, 288 (1869); Terr. Moll., v, 107. A species of the Cumberland Subregion, having been found in East- ern Tennessee and Lawrence County, Kentucky. It has also been found in Western Pennsylvania, in the mountains. An extremely rare species, until recently found by Mrs. G. Andrews in Mitchell and Mc- Donald Counties, North Carolina. The only American species which this shell can be said to resemble is Z. inornatuSj which in size and color is quite like it, and at first sight may be taken for it. It diflers from it in the following particulars: The upper and lower surfaces are both more flattened and the outline is a more perfect circle; the number of whorls in specimens of the same size is greater by nearly one volution; the surface of the whorls is rounded; the last whorl expa
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