Arionidae Temporal range: | |
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A live individual of the Spanish slug Arion vulgaris , in the wild | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Heterobranchia |
Order: | Stylommatophora |
Superfamily: | Arionoidea |
Family: | Arionidae J.E. Gray, 1840 [2] |
Synonyms | |
Tetraspididae Hagenmüller, 1885 |
Arionidae, common name the "roundback slugs" or "round back slugs" are a taxonomic family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea.
The distribution of this family of slugs includes Nearctic, Palearctic and Oriental regions. [1]
Unlike some slugs, European Arionidae have no keel on the back. [1] The caudal mucous pit is above the tip of the tail. [1] The respiratory pore (pneumostome) is in front of the midpoint of the mantle. [1] The body length is up to 250 mm. [1] The mantle covers only a part of the body and lies in the anterior part. [1]
The jaw is odontognathic, [1] which means it is transversally ribbed. Radular teeth include: central tricuspid, lateral bi- or tricuspid, marginal bicuspid, all having broad bases. [1] Teeth are often accreted. [1] The digestive system forms 2 loops. [1] The heart, in relation to body axis, is titled to the left. [1] The kidney is circular (surrounding aorta). [1] Cephalic retractors tend to divide into separate branches attached independently to the posterior part of pallial complex. [1] The shell is strongly reduced in places, most often completely buried in the mantle, usually of loose crystals or plate-like. [1] Genitalia: the penis is present only in some species, epiphallus is present in nearly all of them. [1] Male copulatory organs are generally reduced, their role being taken over by a well-developed atrium and the epiphallus that produces spermatophores. [1]
In this family, the number of haploid chromosomes lies between 21 and 30 (according to the values in this table). [3]
Family Arionidae has no subfamilies according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.
The type genus of the family is Arion Férussac, 1819
Genera within the family Arionidae include:
The parasites of the Arionidae slugs include the Sciomyzidae.
The red slug, also known as the large red slug, chocolate arion and European red slug, is a species of land slug in the family Arionidae, the roundback slugs.
Arion is a genus of air-breathing land slugs in the family Arionidae, the roundback slugs. Most species of this Palearctic genus are native to the Iberian Peninsula.
Arion distinctus is a species of air-breathing land slug in the family Arionidae, sometimes known as the roundback slugs. It is a terrestrial pulmonate gastropod mollusc. Several vernacular names exist, but it is unclear if they are much in use: brown soil slug, common garden slug, darkface arion, Mabille's orange-soled slug, April slug.
Geomalacus is a genus of large air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Arionidae, the roundback slugs.
Laevicaulis is a taxonomic genus of air-breathing, tropical land slugs, terrestrial pulmonate gastropod mollusks in the family Veronicellidae, the leatherleaf slugs.
Tandonia is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae.
The Veronicellidae, also known by their common name the leatherleaf slugs, are a family of pulmonate terrestrial slugs.
Philomycidae are a family of air-breathing land slugs. They are terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea.
Hemphillia is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Arionidae, the roundback slugs.
The Hemphillia glandulosa, common name the warty jumping-slug, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae.
Binneyidae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea.
Ariolimacidae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea.
Anadenidae is a family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionidae.
Ariophantidae is a taxonomic family of air-breathing land snails and semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea.
Urocyclidae is a family of air-breathing land snails, semi-slugs and land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea,.
Arion circumscriptus, common name brown-banded arion, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae. It is commonest in woodland, occurring across most of Europe, except for more southern regions, and is also widespread in North America. It has been argued that A. circumscriptus is best considered a colour morph of Arion fasciatus.
Arion hortensis, also known by its common name the "garden slug", "small striped slug" or "black field slug" is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.
Prophysaon, common name taildropper slugs, is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Ariolimacidae.
This article incorporates public domain text from the reference. [1]