Bigmouth rocksnail
Encyclopedia
The bigmouth rocksnail, scientific name †Leptoxis occultata, was a species
of freshwater snail with a gill and an operculum
, an aquatic
gastropod mollusk in the family Pleuroceridae
. This species was endemic to the United States
. It is now extinct.
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 freshwater snail with a gill and 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 Pleuroceridae
Pleuroceridae
Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell....
. This species was endemic to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. It is now extinct.