📘 Excerpt from Histoire Naturelle des Animaux Sans Vertèbres, Vol. 9: Présentant les Caractères Généraux Et Particuliers de Ces Animaux, Leur Distribution, Leurs Classes, Leurs Familles, Leurs Genres, Et la Citation des Principales Espèces Qui S'y Rapportent; Histoire des MollusquesCoquille ventrue, conoidale, mince, transparente. Ou verture triangulaire. Columelle droite, dépassant la base du bord droit celui-ci ayant un sinus dans son milieu. Point d'opercule.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.