. The conchology of Nottingham; or, A popular history of the recent land and fresh water Mollusca found in the neighborhood;. Mollusks. 36 The shell is turbinated, or twisted, and has a pro- duced spire; the convolutions are generally rounded. The aperture is more or less oval, the operculum horny, and the epidermis is coloured. It is bisexual, and also ovo-viviporous, bringing forth its young alive, and in perfectly-formed shells. M. Bouchard Chautereaux informs us, from bis in- vestigations, that, in autumn, the females contain each twenty or thirty eggs, and that the young ones are brought
. The conchology of Nottingham; or, A popular history of the recent land and fresh water Mollusca found in the neighborhood;. Mollusks. 36 The shell is turbinated, or twisted, and has a pro- duced spire; the convolutions are generally rounded. The aperture is more or less oval, the operculum horny, and the epidermis is coloured. It is bisexual, and also ovo-viviporous, bringing forth its young alive, and in perfectly-formed shells. M. Bouchard Chautereaux informs us, from bis in- vestigations, that, in autumn, the females contain each twenty or thirty eggs, and that the young ones are brought forth when they are little more than two months old. Paludina vivipara (Common Marsh Shell). Linncsus. Figures 14 and The present interesting shell in general form and size approaches more closely to the garden snail-shell than any other of the aquatic species. The umbilicus. 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 Lowe, E. J. (Edward Joseph), 1825-1900. London, C. A. Bartlett; [etc. , etc. ]
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmollusks, bookyear185
