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Mollusca, Gastropoda, Succineidae, Omalonyx unguis (d’Orbigny, 1835): distribution extension and new records for Brazil

2011; Pensoft Publishers; Volume: 7; Issue: 4 Linguagem: Inglês

10.15560/7.4.400

ISSN

1809-127X

Autores

Daniel Coscarelli, Teofânia H. D. A. Vidigal,

Tópico(s)

Aquatic Invertebrate Ecology and Behavior

Resumo

Omalonyx unguis was previously known to occur in Argentina, Paraguay and Uruguay. We report the first conclusive record of occurrence of this species in Brazil, based on specimens collected in three localities in the Paraguay River sub-basin (Mato Grosso do Sul state – Campo Grande and Miranda; Mato Grosso state – Poconé), and in the Brazilian margin of the Paraná River (Foz do Iguaçu, Paraná State). The species was identified by comparative morphology of the reproductive system, and a map that synthesizes the literature and reports new records is presented.

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