''Tryonia'' is a
genus of
freshwater snail
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...
s in the
family Hydrobiidae.
[Wesselingh F. P., et al. (2006).]
Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.
'' Scripta Geologica'' 1333 19-290. This genus is sometimes placed in the family
Cochliopidae[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]
Snails of this genus are very small with narrow shells. Females brood young within the genital tract. Species usually live in
springs
Spring(s) may refer to:
Common uses
* Spring (season), a season of the year
* Spring (device), a mechanical device that stores energy
* Spring (hydrology), a natural source of water
* Spring (mathematics), a geometric surface in the shape of a he ...
. The genus is differentiated from others by the structure of the male and female reproductive systems.
[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.
Most of these snails occur in western North America, especially the
Chihuahuan Desert. There are also species known in
Florida and
Guatemala
Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...
.
[
]
Species
Species include:
* '' Tryonia adamantina'' – Diamond Y springsnail, Diamond tryonia
* ''Tryonia aequicostata
''Tryonia'' is a genus of freshwater snails in the family Hydrobiidae.Wesselingh F. P., et al. (2006).Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.''Scripta Geologica'' 1333 19-290. This genus is sometimes placed ...
'' – smooth-rib hydrobe
* ''Tryonia alamosae
''Tryonia alamosae'', common name the Alamosa springsnail, is a species of small freshwater snail, an Aquatic animal, aquatic prosobranch gastropod mollusk in the family Hydrobiidae.
The species is Endemism, endemic to Socorro County, New Mexico ...
'' – Alamosa springsnail, Caliente tryonia
* '' Tryonia angulata'' – Sportinggoods tryonia
* ''Tryonia brevissima
''Tryonia'' is a genus of freshwater snails in the family Hydrobiidae.Wesselingh F. P., et al. (2006).Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.''Scripta Geologica'' 1333 19-290. This genus is sometimes placed ...
'' – regal hydrobe
* '' Tryonia brunei'' – Brune's tryonia
* ''Tryonia cheatumi
Cheatum's snail also known as the Phantom tryonia, scientific name ''Tryonia cheatumi'', is a species of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Hydrobiidae.
This species is endemic to the ...
'' – Phantom tryonia, Cheatum's snail
* ''Tryonia circumstriata
''Tryonia'' is a genus of freshwater snails in the family Hydrobiidae.Wesselingh F. P., et al. (2006).Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.''Scripta Geologica'' 1333 19-290. This genus is sometimes placed ...
''
* '' Tryonia clathrata'' Stimpson, 1865 – grated tryonia (the type species)[
* '' Tryonia diaboli'' – devil tryonia
* '' Tryonia elata'' – Point of Rocks tryonia
* '' Tryonia ericae'' – minute tryonia
* '' Tryonia gilae'' – Gila tryonia
* '' Tryonia imitator'' – mimic tryonia, California brackish water snail
* '' Tryonia infernalis'' – Blue Point Tryonia]Tryonia seemani
''Tryonia'' is a genus of freshwater snails in the family Hydrobiidae.Wesselingh F. P., et al. (2006).Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.'' Scripta Geologica'' 1333 19-290. This genus is sometimes pla ...
'' (Frauenfeld, 1863)
* ''Tryonia variegata
The Amargosa tryonia, scientific name ''Tryonia variegata'', is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae. This species is endemic to California, United States. Th ...
'' – Amargosa tryonia
References
External links
* Myers, P., et al. 2014
''Tryonia''.
The Animal Diversity Web.
* Hershler, R. (1999)
A systematic review of the hydrobiid snails (Gastropoda: Rissoidea) of the Great Basin, western United States. Part II. Genera ''Colligyrus'', ''Fluminicola'', ''Pristinicola'', and ''Tryonia''".
''The Veliger'' 42(4) 306-37.
* Hershler, R. & F. G. Thompson. (1987)
North American Hydrobiidae (Gastropoda: Rissoacea): redescription and the systematic relationships of ''Tryonia'' Stimpson, 1865 and ''Pyrgulopsis'' Call and Pilsbry, 1886.
'' The Nautilus'' 101(1) 25-32.
* Stimpson, W. (1865). Researches upon the Hydrobiinae and allied forms chiefly made upon materials in the museum of the Smithsonian Institution. ''Smithsonian Miscellaneous Collections
The Smithsonian Contributions and Studies Series is a collection of serial periodical publications produced by the Smithsonian Institution, detailing advances in various scientific and societal fields to which the Smithsonian Institution has made c ...
''
(201)
1-59
page 48
* Thompson F.G. (2011) ''An annotated checklist and bibliography of the land and freshwater snails of México and central America''. Florida Museum of Natural History, Bulletin 50(1): 1-299.
Cochliopidae
Taxa named by William Stimpson
{{Cochliopidae-stub