Theodoxus altenai is a species of freshwater snail with a gill and an operculum, an aquatic gastropod 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 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.