. Bulletin - United States National Museum. Science. Eastern province—interior region species. 221 Fig. Zoiiites capsclla, Gould. Shell quite small, plauorboid, pellucid, glistening, amber-colored; spire nearly plane, comiiosed of about 6^ closely revolv- ing, flattened whorls; surface with distant, impressed, ra- diating strite; suture margined; aperture narrow, semi- lunar; peristome simple, not thickened by callus within; base i^erforated by a deep, rather small, funnel-shai^ed umbilicus. Greater diameter, 5'"""; height, 2^"". Helix rotula, Gould, Proc. Bost.
. Bulletin - United States National Museum. Science. Eastern province—interior region species. 221 Fig. Zoiiites capsclla, Gould. Shell quite small, plauorboid, pellucid, glistening, amber-colored; spire nearly plane, comiiosed of about 6^ closely revolv- ing, flattened whorls; surface with distant, impressed, ra- diating strite; suture margined; aperture narrow, semi- lunar; peristome simple, not thickened by callus within; base i^erforated by a deep, rather small, funnel-shai^ed umbilicus. Greater diameter, 5'"""; height, 2^"". Helix rotula, Gould, Proc. Bost. Soc, iii, G8(June, 1848).—Pfeiffkr, Mod. Hel. Viv., iii, 107, preocc* ,ella- Helix capseUa, Gould, iu Terr. Moll., ii, 239, pi. xxix, a, fig. 2.—W. G. Binnky, Ten- Moll., iv, 117.—Lewis, Amer. Journ. Couch., vi, 188, pi. xii, 12 (1871). Zonites capsdla, W. G. Binney, Terr. Moll., v, 123. Hyalina capsella, Tkyon, Amer. , ii, 252 (1866).— Blnney, L. & Fr.— V^. Sh., i, 40, fig. 72 (1869). Mountains of Eastern Tennessee and West Virginia; a species of the Cumberland Subregion. Formerly 1 referred as a synonym to this species Z. place7itula {q. v.), describing and figuring the animal and dentition. 1 am, however, now convinced of its difference. Lingual membrane with 15-1-15 teeth, two laterals on either side. Zonites This is the shell figured by me iu Terr. Moll., V, Fig. 44, as tula, as I confounded it with that species. Having re- cently received the true placentula (see below), I find this distinct. I suggest for it the name of Miss Law, who has added so much to our knowledge of our land-mollusks by her exi^lorations in Until the limits of the species in this puzzling group are better known, it will be difficult to properly describe species. The figure shows it to be larger, more deeply and widely umbilicated, and with a more elevated spire than Z. placentula. Mountainous region of Tennessee; a species of t
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