Red List Spain: Sensitive to habitat change (Gómez Moliner et al. 2001), Vulnerable (Verdú & Galante 2006). Threatened by forest exploitation, destruction and fire.
External: Slug brownish or reddish creamy to blackish; mantle and back darker, sometimes with dark pigment concentrations there; sole creamy; mucus colourless.
Internal: Penis composed of two parts: anterior part spherical and with glandular papillae at one wall, posterior part narrower and usually cylindrical; penial gland consists of 2-5 branches with papillae set on a common shaft; stimulator-like membraneous and U-formed structure present in anterior part of penis (can easily be damaged during preparation); no distinct rectal caecum, only a pocket-like enlargement.
Up to 40 mm long (preserved 23 mm).
Portugal except extreme south, Spain (Galicia and W Asturias), Madeira.
Type locality: Portugal: mountains near Braga and near Monchique.
Various habitats in pine and oak woods; on rocks and in leaf litter.
Adults were found in spring and autumn. The number of laid eggs is low.