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Type: Articles
Published: 2012-09-28
Page range: 121–131
Abstract views: 75
PDF downloaded: 0

Discovery of an established population of a non-native species of Viviparidae (Caenogastropoda) in Argentina

Instituto de Biodiversidad Neotropical, Facultad de Ciencias Naturales, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucumán, Argentina., Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
Instituto de Biodiversidad Neotropical, Facultad de Ciencias Naturales, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucumán, Argentina., Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
Mollusca Gastropoda Architaenioglossa freshwater snail Sinotaia quadrata South America invasive species

Abstract

Discovery of an established population of Sinotaia quadrata (Benson, 1842) in a river and reservoir in Argentina is reported, representing the first report of a Recent viviparid species in South America. Viviparids are a family of freshwater snails occurring nearly worldwide. A study of the shell and aspects of the anatomy of S. quadrata are presented. It is distinguished from other native taxa by its large shell size, presence of a blackish axial band on the columellar side of the aperture and two to three carina on the body whorl. The invasive species Physa acuta Draparnaud, 1805 (Physidae) and Corbicula fluminea (Müller, 1774) (Corbiculidae) also inhabit the same sites as Sinotaia quadrata. Co-occurring native species of molluscs are Pomacea canaliculata (Lamarck, 1822) (Ampullariidae) and Biomphalaria tenagophila (d´Orbigny, 1835) (Planorbidae). This record increases the total number of invasive gastropods in Argentina to six.