Parmacella gervaisii is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Parmacellidae.
Parmacella gervaisii is considered to be extinct.
This species was endemic to the area near Arles, France.
The animal is brown with olive green hue. The shell is solid, greenish yellow, shiny, entirely opaque, concentrically striated, with 1.25 whorls, anterior part is 3 times larger than posterior part, rounded. The length of the shell is 11–12 mm. The width of the shell is 7 mm. The height of the shell is 2-2.3 mm.
It was observed to occur almost always in pairs in April.
This article incorporates public domain text from the reference.[1]