Potamolithus - Misplaced Pages

Genus of gastropods

Potamolithus

Drawing of an apertural view of the shell of Potamolithus rushii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Tateidae
Genus:	Potamolithus Pilsbry, 1896
Type species
Paludina lapidum d'Orbigny, 1835

Potamolithus is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Tateidae.

Potamolithus was traditionally classified within the Hydrobiidae. However, anatomical study of Potamolithus by Davis & Pons da Silva (1984) showed its relationship with Lithoglyphus, and it is then placed within the family Lithoglyphidae.

The first appearance of the name Potamolithus was in November 1896 as a nomen nudum (a bare name with no description or illustration). The genus was formally defined by Pilsbry in December 1896.

Distribution

Potamolithus is the only genus of the family Tateidae in South America. Distribution of Potamolithus includes Argentina (22 species, 11 species are endemic to Argentina), Uruguay (17 species) and Brazil. Potamolithus is the largest genus (i.e. the one with the highest species richness) of recent freshwater snails in Argentina and in Uruguay.

Species

Species within the genus Potamolithus include:

Potamolithus agapetus Pilsbry, 1911
Potamolithus bushii (Frauenfeld, 1865)
Potamolithus callosus Pilsbry, 1925
Potamolithus carinifer Pilsbry, 1911
Potamolithus catharinae Pilsbry, 1911
Potamolithus concordianus Parodiz, 1966
Potamolithus conicus (Brot, 1867)
Potamolithus dinochilus Pilsbry, 1896
Potamolithus doeringi Pilsbry, 1911
Potamolithus fabiani
Potamolithus felipponei Ihering, 1910
Potamolithus hidalgoi Pilsbry, 1896 - synonyms: Potamolithus microthauma Pilsbry, 1896; Potamolithus dinochilus Pilsbry, 1896; Potamolithus hatcheri Pilsbry, 1911
Potamolithus iheringi Pilsbry, 1896
Potamolithus karsticus Simone & Moracchioli, 1994
Potamolithus lapidum (d'Orbigny, 1835) - synonyms: Potamolithus lapidum supersulcatus Pilsbry, 1896; Potamolithus paysanduanus Ihering, 1910; Potamolithus lapidum var. elatior Pilsbry, 1911; Potamolithus callosus Pilsbry, 1926
Potamolithus microthauma Pilsbry, 1896
Potamolithus orbignyi Pilsbry, 1896
Potamolithus paranensis Pilsbry, 1911
Potamolithus peristomatus (d'Orbigny, 1835)
Potamolithus petitianus (d'Orbigny, 1840)
- Potamolithus petitianus sykesii Pilsbry, 1896 - synonyms: Potamolithus bisinuatus bisinuatus Pilsbry, 1896; Potamolithus bisinuatus obsoletus Pilsbry, 1896; Potamolithus gracilis gracilis Pilsbry, 1896; Potamolithus gracilis viridis Pilsbry, 1896
Potamolithus philipianus Pilsbry, 1911
Potamolithus quadratus Pilsbry & Ihering, 1911
Potamolithus rushii Pilsbry, 1896 - type genus
Potamolithus ribeirensis Pilsbry, 1911
Potamolithus simplex Pilsbry, 1911
Potamolithus tricostatus (Brot, 1867)
Potamolithus troglobius Simone & Moracchioli, 1994
Potamolithus valchetensis Miquel, 1998

Ecology

Potamolithus species live in streams. Some species are subterranean, living in caves (for example Potamolithus troglobius and Potamolithus karsticus).

References

^ Pilsbry H. A. (1896). "Notes on new species of Amnicolidae collected by Dr. Rush in Uruguay". The Nautilus 10: 86-90. page 86.
^ Davis G. M. & Pons da Silva M. C. (1984). "Potamolithus: morphology, convergence, and relationships among hydrobioid snails". Malacologia 25: 73-108.
^ Rumi A., Gregoric D. E. G., Núñez V., César I. I., Roche M. A., Tassara M. P., Martín S. M. & Armengol M. F. L. (2006). "Freshwater Gastropoda from Argentina: Species Richness, Distribution Patterns, and an Evaluation of Endangered Species". Malacologia 49(1): 189-208. doi:10.4002/1543-8120-49.1.189. table.
Bouchet, P. (2014). Potamolithus Pilsbry, 1896. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=724574 on 2014-07-29
Pilsbry H. A. & Rush W. H. (1896). "List, with notes, of land and fresh water shells collected by Dr. Wm. H. Rush in Uruguay and Argentina". The Nautilus 10(7): 76-81. page 80.
Lopez Armengol M. F. & Mancefiido M. O. (1992). "Case 2801. Potamolithus Pilsbry, 1896 (Mollusca, Gastropoda): proposed confirmation of P. rushii Pilsbry, 1896 as the type species". Bulletin of Zoological Nomenclature 49(2): 109.
^ Rumi A., Gregoric D. E. G., Núñez V. & Darrigran G. A. (2008). "Malacología Latinoamericana. Moluscos de agua dulce de Argentina". Revista de Biología Tropical 56(1): 77-111. HTM.
^ (in Spanish) Scarabino F. (2004). "Lista sistemática de los Gastropoda dulciacuícolas vivientes de Uruguay". Comunicaciones de la Sociedad Malacológica del Uruguay 8(84–85/86–87): 347-355. PDF Archived 2016-08-24 at the Wayback Machine.
^ Pilsbry H. A. (1911). "Non-marine Mollusca of Patagonia". In: Scott W. B. (ed.) Reports of the Princeton University Expedition to Patagonia 1896–1899 3: 513-633. Potamolithus is on pages 566-602, plates 38-41.
^ Gregoric D. E. G., Núñez V., Rumi A. & Roche M. A. (2006). "Freshwater gastropods from del Plata basin, Argentina. Checklist and new locality records". Comunicaciones de la Sociedad Malacológica del Uruguay 9(89): 51-60. PDF.
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^ Bichuette M. E. & Trajano E. (2003). "A population study of epigean and subterranean Potamolithus snails from southeast Brazil (Mollusca: Gastropoda: Hydrobiidae)". Hydrobiologia 505: 107-117. abstract, PDF.

Distribution

Species

Ecology

References

Further reading