Uncancylus Explained

Uncancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.

Anatomy

These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch" which can serve perfectly well as a gill when they are unable to reach the surface for air.

Species

Species within the genus Uncancylus include:^{[1] [2]}

• Uncancylus concentricus (d'Orbigny, 1835)
• Uncancylus crequi (Bavay, 1904)
• Uncancylus foncki (Philippi, 1866)
• Uncancylus patagonicus (Biese, 1948)

Notes and References

1. dos Santos, S. B. . 2003. Estado atual do conhecimento dos ancilídeos na América do Sul (Mollusca: Gastropoda: Pulmonata: Basommatophora). Current state of knowledge of ancylids in South America (Mollusca: Gastropoda: Pulmonata: Basommatophora). Revista de Biología Tropical. 51. 3. 191–223. PDF. Redalyc. pt. 6 May 2014.
2. IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 06 May 2014.