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The Caucasus or Caucasia, is a transcontinental region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range, have historically been considered as a natural barrier between Eastern Europe and West Asia.
Helix is a genus of large, air-breathing land snails native to the western Palaearctic and characterized by a globular shell. It is the type genus of the family Helicidae, and one of the animal genera described by Carl Linnaeus. Members of the genus first appeared during the Miocene. Well-known species include Helix pomatia and Helix lucorum. Cornu aspersum, though externally similar and long classified as a member of Helix, is not closely related to Helix and belongs to a different tribe of Helicinae.
Cornu aspersum, known by the common name garden snail, is a species of land snail in the family Helicidae, which includes some of the most familiar land snails. Of all terrestrial molluscs, this species may well be the most widely known. It was classified under the name Helix aspersa for over two centuries, but the prevailing classification now places it in the genus Cornu.
Helix pomatia, common names the Roman snail, Burgundy snail, or escargot, is a species of large, air-breathing stylommatophoran land snail native to Europe. It is characterized by a globular brown shell. It is an edible species. Helix pomatia commonly occurs synanthropically throughout its range.
Helicidae is a large, diverse family of western Palaearctic, medium to large-sized, air-breathing land snails, sometimes called the "typical snails." It includes some of the largest European land snails, several species are common in anthropogenic habitats, and some became invasive on other continents. A number of species in this family are valued as food items, including Cornu aspersum the brown or garden snail, and Helix pomatia. The biologies of these two species in particular have been thoroughly studied and documented.
Helix lucorum is a species of large, edible, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails.
Cantareus apertus, commonly known as the green garden snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Helicidae, the typical snails.
Helix ceratina, the Corsican snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails.
Helix texta is a species of large, edible, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails. This species is endemic to Israel. It lives in the high northern part of Israel, typically in the Hermon ridge area.
A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. Land snail is the common name for terrestrial gastropod mollusks that have shells. However, it is not always easy to say which species are terrestrial, because some are more or less amphibious between land and fresh water, and others are relatively amphibious between land and salt water.
A love dart is a sharp, calcareous or chitinous dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. These darts are made in sexually mature animals only, and are used as part of the sequence of events during courtship, before actual mating takes place. Darts are quite large compared to the size of the animal: in the case of the semi-slug genus Parmarion, the length of a dart can be up to one fifth that of the semi-slug's foot.
Eobania vermiculata also known as Helix vermiculata, common name the "chocolate-band snail" is a species of large, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the true snails or typical snails.
William Henry Benson was a civil servant in British India and a pioneer malacologist. He made large collections of molluscs and described over 470 species, mainly from India, Sri Lanka, Burma and South Africa.
Notodiscus hookeri is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Charopidae. This snail lives on islands in the sub-Antarctic region. Its shell is unique among land snails in that the organic shell layers contain no chitin.
Caucasotachea is a genus of medium-sized air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Helicidae.
Helix cincta is a species of gastropods belonging to the family Helicidae.
Helix vladika is a species of large, air-breathing land snail native to Montenegro and Serbia. It has a brown, conical shell. It is the largest land snail species in Europe. Typical habitat are beech forests. The species is closely related to Helix straminea.
Helix buchii is a species of large, air-breathing land snail native to northeastern Turkey, Georgia, and northern Armenia.
Helix pronuba is a species of large, air-breathing land snail in the subfamily Helicinae of the family Helicidae.
References
- 1 2 3 4 5 Mumladze L., Tarkhnishvili D. & Pokryszko B.M. 2008. A new species of the genus Helix from the Lesser Caucasus (sw Georgia). Journal of Conchology, volume: 39, part 5, page 483, published June 2008. abstract
- ↑ Mumladze, Levan; Tarkhnishvili, David; Murtskhvaladze, Marine (2013). "Systematics and Evolutionary History of Large Endemic Snails from the Caucasus (Helix buchii and H. goderdziana) (Helicidae)". American Malacological Bulletin. 31 (2): 225–234. doi:10.4003/006.031.0202.
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