. Economic mollusca of Acadia . Fig. 16. — Cyprma Mandica. Natural Size. shape, especially, being very similar. But they may always be distin. guished by their color, which, in the latter, is ashy or chalky-white, while in the former, if the epidermis is present (as it nearly always is) it is a dark burnt-brown, or nearly black color. This species wants the purple color of the interior of V. mercenarin, and differs from'it also ia.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188