Arion luisae, is a large terrestrial gastropod mollusk in the family Arionidae, the round back slugs.
Description The length of the species attains 45 mm.
The creature has a brownish-gray color with bands. Its head and tentacles are the same color as the background. It has a grayish border or fringe. The mucus is colorless.Borrèda, V. & Martínez-Ortí, A. (2014). Arion (Kobeltia) luisae spec. nov. (Mollusca: Gastropoda: Pulmonata), un nuevo ariónido español . Bol. R. Soc. Esp. Hist. Nat. Sec. Biol., 109: 9-19
Distribution This species occurs in the eastern coastal areas of Spain.
References
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017.