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.

    13/112
    ANNULATA Forms the Ninth Class of Lamarck's Division of A nimal Nature. SEDENTARY ANNULATA Composes the Third Order of the above Class. They are usually found attached to marine substances, and inhabit membranous or horny tubes ; more or less incrusted with grains of sand or fragments of shells; or are solid, calcareous, and homogeneous: and are divided into Four Families, viz.—Dorsalia, Maldania, Amphitritea, and Serpulea. DORSALIA.—2 Genera. Arenicola.—Has no shell. Siliquaria.—Shell tubular, irregularly twisted, tapering towards the posterior end, which is sometimes spiral; anterior extremity open; and a longitudinal subarticulated fissure throughout its whole length, Plate I. Fig. 1. S, anguina. (Serpula anguina.—Linnaeus.) MALDANIA. — 2 Genera. Clymene.—Tube slender, open at both ends, the exterior incrusted with sand and pieces of shells. [I have not been abTe to procure a Figure of the Clymene amphistoma; of which species only the genus is composed.] Dentalium.—Tube testaceous, nearly regular, slightly curved, gradually tapering to¬ wards the posterior end, open at both extremities. (a) Tube with longitudinal ribs or strice. Plate I. Fig. 3. D. elephantinum. (Idem.—Linnaeus.) [Mrs. Mawe’s Cabinet.] 4 (b) Tube smooth, or without ribs or strice. Plate I. Fig. 2. D. politum. (Idem.—Linnaeus.) [Mrs. Mawe’s Cabinet.] B