. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Pupa corpulentUf enlarged. base; aperture large, subcircular, with 4 obtuse teeth, 1 on the parietal margin, 1 on the cohunellar margin, and 2 on the labrum ; peristome slightly thickened and reflected. Length, .10 inch; breadth, .06 inch. (Morse.) Isthmia corpulentci, Morse, Ann. N. Y. Lye, VIIL 210, Fig. 7 (Nov. 1865). Pupa corpuhnta, W. G. BiNNEY, L. k Sh., I. 238 (1869). Pupilla corpulenta, Tuyon, Am. Joura. Conch., III. 309 (1868). Little Valley, Washoe Co., Nevada; on east slope of Sierra Nevada,
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Pupa corpulentUf enlarged. base; aperture large, subcircular, with 4 obtuse teeth, 1 on the parietal margin, 1 on the cohunellar margin, and 2 on the labrum ; peristome slightly thickened and reflected. Length, .10 inch; breadth, .06 inch. (Morse.) Isthmia corpulentci, Morse, Ann. N. Y. Lye, VIIL 210, Fig. 7 (Nov. 1865). Pupa corpuhnta, W. G. BiNNEY, L. k Sh., I. 238 (1869). Pupilla corpulenta, Tuyon, Am. Joura. Conch., III. 309 (1868). Little Valley, Washoe Co., Nevada; on east slope of Sierra Nevada, 6,500 feet above the sea ; Colora- do; thus far not noticed outside the Central Province. Animal unobserved. Pupa Rowelli, Newcomb. Shell perforate, oblong-ovate, dark horn-colored, shining, translucent, finely striated; apex obtuse; whorls 5, convex; aperture truncately ovate, armed with 4 teeth, 1 prominent and plicate on the columella, 3 deej)ly seated within the aperture, 1 on the columella, 2 within the peri- Fig. 106. stome; peristome slightly reflected. Length, 2 mill.; breadtli, 1 miU. Pupa EowelHi, Newcomb, Ann. N. Y. Lye, VIL 146.—Bland, Ann. N. Y. Lye, Vlll. 166, Fig. 11 (1865). —W. G. Binney, L. k Sh., L 238, Fig. 412 (1869). Pupilla Rowellii, Tuyon, Amer. Journ. Conch., III. 304 (1868). A species of the California Region ; California, near Oakland, Monterey, San Bernardino, El Dorado County. Animal Pupa Rowelliy enlarged. Fig. 107. Pupa Californica, Howell. Shell rimately subperforate, elongate-ovate, thin, dark horn-colored; with oblique rib-like striaj; apex obtuse ; deep suture ; with 5 to 6 convex whorls, the last a little compressed at the aperture ; aperture oblique, sub- orbicular, armed with 4 white denticles ; one lamelliform, strongly developed, slightly twisted, on the parietal wall, one on the colu- mella, and two deeply seated within or near the base of the aper- ture ; peristome slightly expanded, cohunellar margin somewhat re
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