- Red slug
Red slug Conservation statusNE Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda (unranked): clade Heterobranchia
Superfamily: Arionoidea Family: Arionidae Genus: Arion Species: A. rufus Binomial name Arion rufus
This species is characterised by its (usually) red or brown body and lack of a keel.
Its genus, Arion, is derived from the name of the legendary Greek poet Arion. Its species name, rufus, is Latin for red. Although very often brick-red or brown in coloration, Arion rufus can also be greenish-brown, black, yellow, or orange.
Perhaps the red slug's most noticeable feature is the placement of its pneumostome just before the mid-point of its mantle. Like all slugs, the red slug moves relatively slowly, using the muscular contractions of the underside of its foot, which is mostly red with stripes.
The red slug, like all other slugs, uses two pairs of tentacles to sense its environment. The darkly-coloured upper pair, called optical tentacles, is used to sense light. The lower pair provide the red slug's sense of smell. Both pairs can retract and extend themselves to avoid hazards, and, if lost to an accident or predation, can be regrown.
This slug is mostly found in Denmark, where it was a was introduced by some scientists in a forrest near Silkeborg in 1913. And with help from people, it spread to the rest of East Jutland where it, by itself, spread to:
- The red slug is said by some to be the same species as the black slug, Arion ater.
- The Spanish slug, Arion vulgaris, is known to interbreed with the black slug and perhaps the red slug.
- in a matter of 2 years the red slug ate 75% of the west coast strawberries
- ITIS Standard Report Page: Arion Rufus
- Living Landscapes
- Rosetta, Robin; 2004. Oregon State University
- Forsyth, Robert; 2004. Land Snails of British Columbia
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