Bythinella austriaca
Encyclopedia
Bythinella austriaca is a species
of very small freshwater snail
with an operculum
, an aquatic
gastropod mollusk in the family Amnicolidae
.
(eastern alpine
and carpathian).
This species occurs in:
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of very small freshwater snail
Freshwater snail
A freshwater snail is one kind of freshwater mollusc, the other kind being freshwater clams and mussels, i.e. freshwater bivalves. Specifically a freshwater snail is a gastropod that lives in a watery non-marine habitat. The majority of freshwater gastropods have a shell, with very few exceptions....
with an operculum
Operculum (gastropod)
The operculum, meaning little lid, is a corneous or calcareous anatomical structure which exists in many groups of sea snails and freshwater snails, and also in a few groups of land snails...
, an aquatic
Aquatic animal
An aquatic animal is an animal, either vertebrate or invertebrate, which lives in water for most or all of its life. It may breathe air or extract its oxygen from that dissolved in water through specialised organs called gills, or directly through its skin. Natural environments and the animals that...
gastropod mollusk in the family Amnicolidae
Amnicolidae
Amnicolidae is a family of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks.This family is in the superfamily Rissooidea and in the clade Littorinimorpha...
.
Distribution
The distribution of this species is CarpathianCarpathian
Carpathian may refer to:*Carpathian Mountains of Central and Eastern Europe*Carpathian Convention on sustainable development in that region*Carpathian Shepherd Dog, a Romanian sheep dog*Subcarpathian Voivodeship, an administrative division of Poland...
(eastern alpine
Eastern Alps
Eastern Alps is the name given to the eastern half of the Alps, usually defined as the area east of the Splügen Pass in eastern Switzerland. North of the Splügen Pass, the Posterior Rhine forms the border, and south of the pass, the Liro river and Lake Como form the boundary line.-Geography:The...
and carpathian).
This species occurs in:
- Bulgaria
- Czech Republic - it lives mainly in Moravia and in eastern Bohemia, but there are also islolated populations near Prague
- Germany - live in Bayern only and it is endangered (Gefährdet)
- Poland
- Slovakia