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Issue: Vol. 1232 No. 1: 15 Jun. 2006
Type: Articles
Published: 2006-06-15
DOI: 10.11646/zootaxa.1232.1.2
Page range: 59–68
Abstract views: 64
PDF downloaded: 3

A new genus of Barleeidae Gray, 1857 (Mollusca, Gastropoda) and the first occurrence of the genus Pseudodiala Ponder, 1967 off the Brazilian coast

Departamento de Zoologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro. Av. São Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, Cep. 20550-900, Brasil
Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro. Ilha do Fundão, Rio de Janeiro, RJ, Cep. 21941-570, Brasil
Mollusca Barleeidae Pseudodiala Ketosia n. gen. new species marine biodiversity Brazil

Abstract

Ketosia new genus, Barleeidae, is described from off the Brazilian coast, based on conchological analysis of specimens collected through the REVIZEE Program and others from oil prospecting, off the coast of Rio de Janeiro State (24 o W). The new genus is characterised by: anteriorly convex to slightly convex shell profile; protoconch paucispiral, dome-shaped, its surface covered with irregular pits; and teleoconch smooth but with minute deep pits. The aperture is oval, and may be separated from the peripheral region of the teleoconch by a depression. Two new species belonging to this new genus are described herein. We also record, for the first time, the occurrence of the genus Pseudodiala Ponder, 1967 from the Brazilian coast, describing a new species.

References

  1. Absalão, R.S. (2002) Three new species of Barleeidae (Mollusca, Gastropoda, Rissooidea) from Brazil. Zootaxa, 56, 1–7.

    Absalão, R.S. & Rios, E.C. (1995) Descriptions of two new species of Caelatura (Gastropoda, Risooidea, Barleeidae) from Brazil. Apex, 10 (2/3), 87–93.

    Gofas, S. (1995) A remarkable specie richness of the Barleeidae (Gastropoda: Rissoacea) in the Eastern Atlantic. The Nautilus, 109, 14–37.

    Gofas, S. (1999). The west African Rissoidae (Gastropoda: Rissooidea) and their similarities to some European species. The Nautilus, 113, 78–101.

    Ponder, W.F. (1983) Review of the genera of the Barleeidae (Mollusca: Gastropoda: Rissoacea). Records of the Australian Museum, 35, 231–281.

    Ponder, W.F. (1984) A review of the genera of the Rissoidae (Mollusca: Mesogastropoda: Rissoacea). Records of the Australian Museum, 35, 231–281.

    Ponder, W.F. & Worsfold, T.M. (1994) A Review of the Rissoiform Gastropods of Southwestern South America (Mollusca, Gastropoda). Contributions in Science, Natural History Museum of Los Angeles County, 445, 1–63.

    Rios, E.C. (1985) Seashells of Brazil. Rio Grande: Fundação Cidade do Rio Grande — Museu Oceanográfico, 329 pp., 102 pls.

    Rios, E.C. (1994) Seashells of Brazil. Rio Grande: Fundação Cidade do Rio Grande — Museu Oceanográfico, 368 pp., 113 pls.