. Bulletin des Museums für Vergleichende Zoologie an der Harvard College. Zoologie. 328 terrestrischen Atemluft- und Weichtierarten. Zahn - wie Tuberkel; peristome akute, rose-colored, ebenso winklig wider, appressed an der columella. Größere Durchmesser 14, 12 Mio.; Bild. 211. Höhe > 7 miU Helix Wheatleyi, langweilig, Ann. N.Y., Lauge, VII. 118, PI. Iv. Abb. 19 (1860). - W. G. Binney, L.& P.-W. Sh., I. 145 (1869). Mesodon Wheatleyi, Tryon, Standort. Journ. Conch., III. 40 (1867). Berge in Cherokee County und Hayesville,Caro-Lina. Es kann eine Art der Cumberland Subregion beweisen. Kiefer

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. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 328 TERRESTRIAL AIR-BREATHING MOLLUSKS. tooth-like tubercle; peristome acute, rose-colored, equally angularly reflected, appressed at the columella. Greater diameter 14, lesser 12 mill.; Fig. 211. height> 7 miU Helix Wheatleyi, Bland, Ann. N. Y. Lye, VII. 118, PI. IV. Fig. 19 (1860). — W. G. Binney, L. & Fr.-W. Sh., I. 145 (1869). Mesodon Wheatleyi, Tryon, Am. Journ. Conch., III. 40 (1867). Mountains in Cherokee County and at Hayesville, North Caro- lina. It may prove a species of the Cumberland Subregion. Jaw as usual in the genus, with about 12 ribs. M. Wheatleyi. Lingual membrane long. Teeth about 67—1—67, with over 12 laterals. Centrals and laterals as usual in the genus. Mar- ginals high, narrow, with one very long cutting point to the single cusp. Outer marginals about as high as wide, with one long inner, obtusely pointed, cutting point, and one shorter, outer cutting point. The first marginal teeth resemble those of thyroides in the single, greatly produced cutting point. The extreme marginals, however, are bifid. (PI. VIII. Fig. R.) The genital system in the specimens received was too decayed to allow of complete examination. The penis sac, however, was in perfect condition. It forms the peculiar feature of the system on account of its enormous develop- ment. It is short, cylindrical, with blunt ends, very stout, three or four times as large as the oviduct, with retractor muscle and vas deferens at its apex. Mesodon dentifera, Binney. Vol. in. PI. XII. Shell imperforate, flattened-convex on the upper surface, convex below; epidermis yellowish horn-color, immaculate ; spire depressed; whorls 5, with delicate, parallel, oblique stria?; suture distinct, not deeply impressed; aper- ture contracted by the peristome, flattened towards the plane of the base; peristome thickened, white, broadly and abruptly reflected ; parietal wall with a prominent, white, tooth-like process

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• bookauthorha
• bookcentury1800
• bookdecade1870
• booksubjectzoology