A conchological manual

A Conchological Manual by George Brettingham Sowerby II General Arrangement. Conchological writers are not agreed as to the propriety of allowing the above to enter into the present science. Class Conchifera. The shell of a conchiferous animal is always bivalve, composed of two pieces placed opposite to each other, joined at the dorsal. The Conchological System of De Blainville Fig. 1 to A Conchological Manual — The Conchological System of De Blainville George Brettingham Sowerby II. A conchological manual. Pages; Table of Contents Show More. URL for Current Page Author: G. B. Sowerby, George Brettingham Sowerby.

A conchological manual by Sowerby, G. B. (George Brettingham), Publication date Topics Shells Publisher London H. G. Bohn Collection. A conchological manual by Sowerby, G. B. (George Brettingham), Publication date Topics Shells Publisher London: Henry G. Bohn Collection biodiversity. Lips, or edges of the Aperture. The part of the edge of the aperture next to the body whorl is named the inner, or columellar lip. Posteriorly it commences at the point of union with the outer lip, where that touches the body whorl, the junction being generally marked by an angle, and sometimes by a canal.

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