. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 186 BULLETIN OF THE This is a very dark, intermediate form of Jidelis, which in its southern march under changed conditions assumes a more carinated form, and is known to con- chologists as infumata, Gould. The above is Mr. Hemphill's description. Arionta Coloradoensis, Steaens. Shell orbicular, moderately depressed, whorls slightly elevated, apex obtuse, number of whorls four to four and a half, rounded. Umbilicus narrow, showing the penultimate whorl, though partially covered by the reflection of the lip at
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 186 BULLETIN OF THE This is a very dark, intermediate form of Jidelis, which in its southern march under changed conditions assumes a more carinated form, and is known to con- chologists as infumata, Gould. The above is Mr. Hemphill's description. Arionta Coloradoensis, Steaens. Shell orbicular, moderately depressed, whorls slightly elevated, apex obtuse, number of whorls four to four and a half, rounded. Umbilicus narrow, showing the penultimate whorl, though partially covered by the reflection of the lip at the point of junction with the base of the shell. Aperture obliquely ovate, nearly circular, and almost as broad as high. Lip slightly thickened and reflected, or simple, vary- ing in this respect; more reflected and aperture more eff"use at the 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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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
