An illustrated introduction to Lamarck's conchology; contained in his Histoire naturelle des animaux sans vertèbres: being a literal translation of the descriptions of the recent and fossil genera / Accompanied by ... plates. By Edmund A. Crouch, F.L.S.

  • Edmund A. Crouch
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: An illustrated introduction to Lamarck's conchology; contained in his Histoire naturelle des animaux sans vertèbres: being a literal translation of the descriptions of the recent and fossil genera / Accompanied by ... plates. By Edmund A. Crouch, F.L.S. Source: Wellcome Collection.

    35/112 (page 23)
    BRACHIOPODA_3 Genera. Shell bivalve, adhering to marine bodies, either directly or by a tendinous cord. Orbicula.—Shell suborbicular, inequivalve; without any apparent hinge: lower valve very thin, flat, adhering to marine substances; the upper valve subconical, the summit more or less elevated. [I have not been able to meet with any shell agreeing with the above description.] Terebratula.—Shell inequivalve, regular, subtriangular, attached to marine bodies by a short tendinous pedicle; the beak of the larger valve produced, often curved, perforated at the summit by a round hole, or by a notch: hinge with two teeth; two nearly osseous, slender, elevated, forked, variously ramified branches rise from the disk of the small valve, and serve as a support to the animal. (1) Shell smooth, without longitudinal str ive or furrows. Plate XIII. Fig. 5. T. vitrea- (Anomia vitrea.—Gmel) (2) Shell striated longitudinally. Plate XIII. Fig. 4. T. psittacea. (Anomia psittacea.—Gmel.) Lingula.—Shell subequivalve, flattened, ovate-oblong, truncated at the summit, rather pointed at the base, elevated on a fleshy tendinous pedicle, fixed to marine bodies: hinge without teeth. Plate XIII. Fig. 6. L. anatina. (Patella unguis.—Linn.) (a) Inside of ditto.