. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. POLYGYRA. 277 showing lj whorls, and ending in a narrow umbilicus; aperture subreniform, very oblique, contracted; peristome white, thickened, not reflected, continuous,' its terminations approached, joined by a prominent, excavated, heavy, somewhat flexuose, emarginate, tongue-like callus, pro- jecting almost across the aperture; within the columellar mar- gin of the peristome is an erect, blunt, stout denticle (its inner* end continued back within the aperture into an erect lamella joining the inner wall) somewhat o
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. POLYGYRA. 277 showing lj whorls, and ending in a narrow umbilicus; aperture subreniform, very oblique, contracted; peristome white, thickened, not reflected, continuous,' its terminations approached, joined by a prominent, excavated, heavy, somewhat flexuose, emarginate, tongue-like callus, pro- jecting almost across the aperture; within the columellar mar- gin of the peristome is an erect, blunt, stout denticle (its inner* end continued back within the aperture into an erect lamella joining the inner wall) somewhat overlapping and thus partially P. Hazardi, concealing from view a smaller, more deeply seated, erect, ob- tuse, stout denticle on the right margin of the peristome; an internal trans- verse tubercle on the base of the shelL Greater diameter 7, lesser 6 mill.; height, 3 mill. Polygyra plicata,1 Say, Journ. Acad. Phila., II. 161 (1821) ; ed. Binney, 21. Helix fatigiata, Binney in Bost. Journ. Nat. Hist., III. 388 (1840), part (excl. syn. and fig.); in Terr. MolL part (excl. syn. and fig.). Helix Texasiana, Pfeiffer, Mon. Hel. Viv., I. 418 (excl. syn. and descr.); in Chemnitz, \. 85 (excl. syn., descr., and fig.). Helix Dorfeuilliana, Deshayes in Fer., I. 73 (excl. descr., syn., fig.). Helix Troostiana, Pfeiffer, Mon. Hel. Viv., IV. 318, part. Helix Hazardi, Bland, Ann. N. Y. Lye, VI. 291, PI. IX. Figs. 27-30 (1858). — Pfeiffer, Mai. Blatt., 1859, 34. — W. G. Binney, Terr. MolL, IV. 84, PL LXXVIII. Fig. 13. — L. & Sh., I. 99 (1869). Helix Jinitima, Deshayes in Fer. ? Helicina plicata, DeKay, N. Y. Moll., 82 (1843). Dadalochila Hazardi, Tryon, Am. Journ. Conch., III. 68 (1867). Alabama (Tuscumbia), Kentucky (near Frankfort), Georgia, and Tennes- see (Cumberland Mountains). A species of the Cumberland Subregion. Animal small, smoky-white; head and eye-peduncles 'dark blue. This shell may be distinguished from fastigans and Troostiana, independently of the absenc
Size: 1536px × 1627px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorha, bookcentury1800, bookdecade1870, booksubjectzoology
