''Theodoxus altenai'' is a species 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 ...

with a gill and an operculum, an aquatic

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Neritidae, the nerites.

Distribution

The distribution of this species includes Antalya Province in southern Turkey. The type locality is a lake near Döşemealti in Antalya Province, Turkey.

Description

The shell is exceptionally thin, light horny yellowish, translucent and shiny. The

Whorls A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral d ...

are flat and very rapidly increasing, with a brown quadrangular color pattern. The operculum is reddish, without an apophysis. The width of the shell is 9.0-10.0 mm. The height of the shell is 6.0 - 7.0 mm.

Ecology

This snail lives in lakes.

References

This article incorporates public domain text from the reference"Species summary for ''Theodoxus altenai''"
AnimalBase, last modified 15 June 2010, accessed 15 April 2011. {{Taxonbar, from=Q7782193 Neritidae Endemic fauna of Turkey Gastropods described in 1965