Helicodiscus parallelus
Encyclopedia
Helicodiscus parallelus, common name
the compound coil, is a species
of small air-breathing land snail
, a terrestrial
pulmonate gastropod mollusk in the family Helicodiscidae
.
Helicodiscus parallelus is the type species
of the genus Helicodiscus.
Common name
A common name of a taxon or organism is a name in general use within a community; it is often contrasted with the scientific name for the same organism...
the compound coil, is a species
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 small air-breathing land snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
, a terrestrial
Terrestrial animal
Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...
pulmonate gastropod mollusk in the family Helicodiscidae
Helicodiscidae
Helicodiscidae is a family of small air-breathing land snails, terrestrialpulmonate gastropod mollusks in the superfamily Punctoidea .- Genera :...
.
Helicodiscus parallelus is the type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
of the genus Helicodiscus.
Distribution
This species occurs in the following countries and islands:- North MexicoMexicoThe United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
- Great Britain as a "hot-house alien"