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Added: 11th December 2010 Description:
On the groundlayer. Hiding under leaf litter. Two young black slugs. suprised to find at the time of the year. However the warmth from the blanket of decomposing leaves would be an ideal micro habitat.Inicator of ancient woodland.
Confidence: I'm as sure as I can be. Notes: Indicator of ancient woodland. Found in deciduous woodland.
Confidence: It's likely to be this, but I can't be certain. Notes: I can't see enough to be certain, but if that's a young dandelion leaf in the background, I'm guessing these are about 1cm long. When they hatch, Limax cinereoniger are very pale fawn colour. At 6 months (and 3-4cm) they have pale brown sides and backs with a dark stripe along each side. They don't darken all over till about a year old, by which time they are about 5-7cm long. By the time they are black on the body, the keel running down the middle of the back is usually whitish. The pale line along the lower flanks of the upper specimen suggest something like Garden Slug, Arion hortensis, or Silver Slug, Arion silvaticus.
No interactions present.
Other observations of
Round-back Slug ( Arion sp.)