Anatomy and Reproductive Biology of Two Western Atlantic Species of Vitrinellidae, With a Case of Protandrous Hermaphroditism in Rissoacea

Publication date: 1988

Seller: ConchBooks, Harxheim, GermanyConchBooks

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Item description from seller

Two western Atlantic vitrinellids, Cyclostremiscus beauii (Fischer, 1857) and Circulus texanus (Moore, 1965) new combination are redescribed based on a study of live snails from the burrows of the stomatopod crustacean Lysiosquilla scabricauda (Lamarck, 1818). Anatomy and reproductive biology are emphasized, with the first recorded description of spawn and larval development in the family. Synonymies are given, and a lectotype is selected for Cy. beauii. Literature data concerning anatomy are reviewed for the marine near-planispiral rissoaceans; Vitrinellidae (including Cyclostremiscus and Circulus, with Circulidae as a synonym) is considered distinct from Tornidae. Unusual morphological aspects of Cy. beauii are discussed, including external ciliation patterns, pallial tentacles (which are functionally and morphologically different from each other), and stomach morphology {with a large posterior chamber). Protandrous sequential hermaphroditism in Cy. beauii is inferred (for the first time in the Rissoacea) from morphological evidence of sex change correlated with size. 29 pp., 68 figs, 4.…

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Bibliographic details

Title
Anatomy and Reproductive Biology of Two Western Atlantic Species of Vitrinellidae, With a Case of Protandrous Hermaphroditism in Rissoacea
Author
Bieler, R. & Mikkelsen, P. M.
Publication year
1988

ConchBooks

Harxheim, Germany

3-star seller

AbeBooks seller since March 1, 2007

Shipping rates from Germany to U.S.A.

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Store description

Founded in 1985 we are specialized in worldwide literature on Mollusca and marine invertebrates. Our publishing house has meanwhile published approximately 60 titles on that field of interest. We have stocks of most available international books on Malacology and a huge amount of antiquarian literature, even of the latter most titles are only available once.

Specialty

Weichtiere / Shells, Schnecken / Snails & Slugs, Muscheln / Bivalves, Tintenfische / Squids / Octopusses / Ammonites, Malacology, Conchology, Marine Biology

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ConchBooks

Germany