. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. POLYGYRA. 265 Fig. p. uvulifera, enlarged. , lY. 75 ; L. & 267. — Bland, the last abruptly deflected at the aperture, devious below, constricted and scro- biculated; aperture very oblique, ear-shaped, ringent, very much narrowed; peristome acute, patulously reflected, its terminations joined by an oblong, tongue-shaped, deeply entering, excavated fold, its right margin with a deeply seated lamella terminating in a reflected, filiform uvula-like point, the basal margin with an oblique, sinuous, tooth
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. POLYGYRA. 265 Fig. p. uvulifera, enlarged. , lY. 75 ; L. & 267. — Bland, the last abruptly deflected at the aperture, devious below, constricted and scro- biculated; aperture very oblique, ear-shaped, ringent, very much narrowed; peristome acute, patulously reflected, its terminations joined by an oblong, tongue-shaped, deeply entering, excavated fold, its right margin with a deeply seated lamella terminating in a reflected, filiform uvula-like point, the basal margin with an oblique, sinuous, tooth-like tubercle. Greater diameter 12, lesser 11 mill.; height, 7 mill. ITdix uvulifera, Siiuttleworth, Bern. Mitt., 1852, 199. — Chemnitz, ed. 2, II. 420, PI. CXLVIII. Figs. 19, 20 (1853). — Gould, Terr. Moll., III. 20.—W. G. Binney, Terr. Moll Sh., I. 87 (1869). — Pfeiffer, Mon. Hel. Viv., III. Ann. N. Y. Lye. N. H., YII. 34, Fig. 13 (1858). Helix floridifera, Reeve, Con. Icon., No. 699 (Aug. 1852). Helix auriculata, minor, F^russac, Hist, PI. I. Fig. 3? (teste Pfeiffer). Dcedalochila uvulifera, Tryon, Am. Journ. Conch., III. 157 (1867). Found plentifully on the Florida Keys, Key West, Little Sarazota Bay, Long Key, Florida, Dallas, and at Cape Sable. As I also have specimens from Corpus Christi, it probably inhabits the whole Gulf coast of the Southern Region. P. uvulifera may be distinguished from P. auriculata by the character of the peristome, which is equally produced from the superior angle of the parietal process, to the base of the inferior tooth or fold, where it Fig. 161. ig reflected, sometimes appressed to the last whorl. The lower angle of the parietal process is connected with the inner termination of the peristome by a flat, more or less developed callus. The umbilical region is less open, and there is no groove within it on the last whorl. Jaw low, arcuate, ends blunt, anterior surface with about 13 ribs, denticulating either margin. Lingual mem
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