Vallonia declivis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae.
Distribution This species is found in Austria, France, Germany, Poland, and Switzerland. It was previously listed as part of the fauna of Slovakia, but Čejka considered its occurrence in Slovakia unlikely.Čejka T., Dvořák L., Horsák M. & Šteffek J. (2007). "Checklist of molluscs (Mollusca) in the Slovak Republic". Folia Malacologica 15(2): 49-58. It lives also in the Czech Republic (in Bohemia only) and in Slovakia. Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
References
External links "Species summary for Vallonia declivis". AnimalBase