The Gila tryonia (''Tryonia gilae'') is a species of
freshwater snail
Freshwater snails are gastropod mollusks that 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 t ...
in the family
Hydrobiidae
Hydrobiidae, commonly known as mud snails, is a large cosmopolitan family of very small freshwater and brackish water snails with an operculum, in the order Littorinimorpha.MolluscaBase eds. (2024). MolluscaBase. Hydrobiidae W. Stimpson, 1865. ...
, the mud snails. It is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
in the United States, where it is known only from
Graham County.
[NatureServe. 2014]
''Tryonia gilae''.
NatureServe Explorer. Version 7.1. Accessed September 13, 2014.
This snail has a conical, elongated shell reaching about 3.4 millimeters in length and 3.3 in height. The shell is transparent. The animal has fleshy lips on its snout.
[''Tryonia gilae''.]
Invertebrate Abstracts. Arizona Game and Fish Department.
This snail occurs at just a few spots in
springs in the
Upper Gila River system near
Bylas, Arizona.
[
]
References
Tryonia
Endemic fauna of Arizona
Endemic molluscs of the United States
Graham County, Arizona
Gastropods described in 1987
Taxonomy articles created by Polbot
{{Hydrobiidae-stub