A new species of Chlamydoconcha Dall, 1884, from southeastern Brazil (Bivalvia: Chlamydoconchidae)

Autor(es)

Simone, Luiz Ricardo L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Museu Zool, BR-04299970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: NAUTILUS; v. 122, n. 4, p. 252-258, DEC 22 2008.
• Citações Web of Science: 4

Resumo

The second species in the genus Chlamydoconcha is described. Chlamydoconcha avalvis new species, occurs off the coast of Rio de Janeiro coast, in southeastern Brazil. The new species has very reduced valves acid a mantle surrounding the entire body, two features of the genus. The outer surface of the mantle lacks papillae except for a single cite located close to the excurrent siphon. These are distinctive characters of Chlamydoconcha orcutti Dall, 1884, from the eastern Pacific coast of North America, the single other known species of the genus. Some of the more interesting anatomical characters of the new species are: posterior pair of retractor muscles Of foot free front valves, absence of adductor muscles, gastric style sac totally separated from intestine, and the presence of a single (excurrent) siphon. (AU)

• Processo FAPESP: 04/02333-8 - Morfologia comparativa e taxonomia de bivalves da Flórida, USA e do Brasil, incluindo um esboço sobre a filogenia da classe Bivalvia (Mollusca)
• Beneficiário: Luiz Ricardo Lopes de Simone
• Modalidade de apoio: Auxílio à Pesquisa - Regular