. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. VERTIGO. 217 Moll., IV. 148; L. & Sh., I. 253 (18G9). — , Amor. Nat., I. 6G8, Figs. 57, 58 (1868). — Tuyon, Ainer. Journ. Conch., III. 310, 22 (18G8). — Gould and Binnky, Inv., 442, Fig. 704 (1870). —Fischer and Ckosse, Moll. Mex. et , 310 (1870). Vertigo tridentata, Wolf, Am. Journ. Conch., V. 198, PI. XVII. Fig. 1. Pupa ovata, Gould, Journ. Nat. Hist, IV. 350, PI. XVI. Figs. 7, 8 (1843). — DkKay, N. Y. Moll., 50, PI. IV. Fig. 50 (1843). — Adams, Vermont Mol- lusca, 157 (1842);


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. VERTIGO. 217 Moll., IV. 148; L. & Sh., I. 253 (18G9). — , Amor. Nat., I. 6G8, Figs. 57, 58 (1868). — Tuyon, Ainer. Journ. Conch., III. 310, 22 (18G8). — Gould and Binnky, Inv., 442, Fig. 704 (1870). —Fischer and Ckosse, Moll. Mex. et , 310 (1870). Vertigo tridentata, Wolf, Am. Journ. Conch., V. 198, PI. XVII. Fig. 1. Pupa ovata, Gould, Journ. Nat. Hist, IV. 350, PI. XVI. Figs. 7, 8 (1843). — DkKay, N. Y. Moll., 50, PI. IV. Fig. 50 (1843). — Adams, Vermont Mol- lusca, 157 (1842); Silliman's Journal [i], XL. 271. — Kuster, in Chemnitz, ed. 2, 118, PI. XIV. Figs. 1, 2; XV. Figs. 35, 38. — Pfeiffer, Men. Hel. Viv., II. 360 ; Symbolaj, II. 54. Pupa modesta, Say, Long's Exped., II. 25, PI. XV. Fig. 5 (1824) ; ed. Binney 32, PI. LXXIV. Fig. 5.— Gould, Invertebrata, 188, Fig. 119 (1841). Pupa ovulum, Pfeiffer, olim, Symbolee, I. 46. Isthmia ovata, Morse, Journ. Portl. Soc, I. 38, Fig. 93 ; PI. X. Fig. 94 (1864). Over all the Eastern Province, having been found from Maine to Texas. Also in the Central Province in Arizona. For its presence in Europe, see Jensen, Bidr. til Kristianiafjorden Moll., 68, 80. Also quoted from Mexico and Cuba. Jaw arcuate, of uniform breadth, ends square and horizontal; anterior surface with longitudinal wrinkles*, concave margin simple, with a median projection. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum


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