Theodoxus altenai is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.[3]
The distribution of this species includes Antalya Province in southern Turkey.[3]
The type locality is a lake near Döşemealti in Antalya Province, Turkey.[2]
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.[3] The operculum is reddish, without an apophysis.[3]
The width of the shell is 9.0-10.0 mm.[2] The height of the shell is 6.0 - 7.0 mm.[2]
This snail lives in lakes.[3]
This article incorporates public domain text from the reference[3]
