[4] The tubercles that texture the dorsal surface of its body taper to sharp, prickle-like points, inspiring the common name hedgehog slug.

[4] This species occurs in natural habitat such as grasslands and forests, and on cultivated or otherwise human-altered land, such as pastures, orchards, and hedges.

[7] For a long time, this hermaphroditic slug was thought to reproduce only by self-fertilization; solitary captive specimens produced offspring and the species had never been observed mating.

Genetic analysis provided evidence of crossing and the species is now believed to have a mixed breeding system, with an individual having the ability to fertilize itself or cross-fertilize, exchanging sperm with a mate.

[7] While most exotic slugs and snails are often found in altered environments, this species has a greater tendency to invade natural habitat, such as forests.