Tryonia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Hydrobiidae
Subfamily: Littoridininae
Genus: Tryonia
Stimpson, 1865[1]
Type species
Tryonia clathrata Stimpson, 1865
Synonyms[2]

Durangonella Morrison, 1945

Tryonia is a genus of freshwater snails in the family Hydrobiidae.[3] This genus is sometimes placed in the family Cochliopidae[2]

Snails of this genus are very small with narrow shells. Females brood young within the genital tract. Species usually live in springs. The genus is differentiated from others by the structure of the male and female reproductive systems.[4]

Most of these snails occur in western North America, especially the Chihuahuan Desert. There are also species known in Florida and Guatemala.[4]

Species

Species include:[5]

References

  1. 1 2 Stimpson, W. (1865). Diagnoses of newly discovered genera of gasteropods, belonging to the sub-fam. Hydrobiinae, of the family Rissoidae. American Journal of Conchology 1 52-54. page 54.
  2. 1 2 Bouchet, P. (2014). Tryonia Stimpson, 1865. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=722774 on 2014-11-16
  3. Wesselingh F. P., et al. (2006). Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia. Scripta Geologica 1333 19-290.
  4. 1 2 Hershler, R., et al. (2011). New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot. Zootaxa 3001 1-32.
  5. Tryonia. Integrated Taxonomic Information System (ITIS)
  6. Hershler, Robert; Liu, Hsiu-Ping; Simpson, Jeffrey (March 2015). "Assembly of a micro-hotspot of caenogastropod endemism in the southern Nevada desert, with a description of a new species of "Tryonia" (Truncatelloidea, Cochliopidae)". ZooKeys (492): 107–122. doi:10.3897/zookeys.492.9246. PMC 4389216. PMID 25878543.


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