| Arion lusitanicus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Arionidae |
| Genus: | Arion |
| Species: | A. lusitanicus |
| Binomial name | |
| Arion lusitanicus Mabille, 1868 | |
Arion lusitanicus, also known by its common name Portuguese slug, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae.
Arion lusitanicus is endemic to forests of the western Lisbon Region (such as the Sintra-Cascais Natural Park or the Arrábida Natural Park) in Portugal. [2]
In slugs it is often difficult to establish good criteria for identifying species using external features or internal features, as colouration can be quite variable, and the rather plastic anatomy makes diagnostic anatomical features difficult to establish.
It is a rather large (up to 80 mm long) slug of reddish-brown colour. There are two light brown bands on the dorsum and mantle, the right band passes above the pneumostome. The margin of the foot is reddish or yellowish with dark transverse lines reaching into the lateral parts of the sole. The sole is olive greyish with darker marginal zones. The tentacles are blackish.
Genitalia: Atrium spherical and undivided, spermatheca ovoid, spermatheca duct as long as spermatheca or slightly shorter, getting slightly wider near insertion at atrium, epiphallus longer than vas deferens, vagina longer and wider than spermatheca duct. [3]
The more well known Spanish slug Arion vulgaris (Moquin-Tandon, 1855) was for a time misidentified as Arion lusitanicus, but the two slugs are not very closely related, differing in internal anatomy, shape of spermatophore and number of chromosomes.
The grove snail, brown-lipped snail or Lemon snail is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc.
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.
The black slugArion aterL. is a large terrestrial gastropod mollusk in the family Arionidae, the round back slugs. Land slugs lack shells like other terrestrial mollusks. Without such shells, slugs produce unappetizing mucus, that may also contain toxins—to deter predators. Terrestrial slugs produce two other forms of mucus that facilitate locomotion and prevent death from drying. Such mollusks are hermaphroditic. Slugs most often function as decomposers but are also often omnivores. Arion ater is one such slug, decomposing organic matter, preying on other organisms, and consuming vegetative matter including agricultural crops. Native to Europe, the black slug is an invasive species in Australia, Canada, and the United States.
The Spanish slug has the scientific name Arion vulgaris Moquin-Tandon, 1855. Earlier the name Arion lusitanicus Mabille, 1868 was mistakenly applied, and then the name Arion lusitanicus auct. non Mabille once the mistake was recognised. The species is an air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.
Tandonia budapestensis is a species of air-breathing, keeled, land slug, a shell-less terrestrial gastropod mollusks in the family Milacidae.
Arion fuscus, also known as the "Dusky Arion", is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.
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.
The Kerry slug or Kerry spotted slug is a species of terrestrial, pulmonate, gastropod mollusc. It is a medium-to-large sized, air-breathing land slug in the family of roundback slugs, Arionidae.
Tandonia nigra is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Milacidae.
Acroloxus lacustris, or the lake limpet, is a small freshwater limpet or snail, a species of aquatic gastropod mollusk in the family Acroloxidae.
Bathyomphalus contortus is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies.
Tandonia rustica is a species of air-breathing, keeled, land slug, a shell-less terrestrial gastropod mollusk in the family Milacidae.
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 intermedius is a species of land slug in the family Arionidae, the roundback slugs. It is known commonly as the hedgehog slug, hedgehog arion, or glade slug.
Arion silvaticus is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae.
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.
Arion owenii is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Arionidae, the roundback slugs.
Semilimax pyrenaicus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vitrinidae. It is a large greyish-brown snail that cannot fully retract into its shell.
Geomalacus anguiformis is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Arionidae, the round back slugs.
Tandonia serbica is a species of keeled air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Milacidae.
