Abstract
I SHOULD be very pleased if some of the various conchological readers of NATURE would kindly furnish me with their records of these two shells. The questions I specially want to ask concerning them are as follows:—What varieties (with band-formulæ) have they found? What number of each variety and band-variation have they taken? What is the environmental condition of the localities where they have found them, as regards plant-life and geological formation? And, in addition, I want the records (and this is a special point) from separate and distinct hedges or banks.
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WILLIAMS, J. Helix nemoralis and hortensis. Nature 42, 457 (1890). https://doi.org/10.1038/042457d0
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DOI: https://doi.org/10.1038/042457d0
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