Lehmannia islandica

Lehmannia islandica was described as a species of air-breathing land slug, a shell-less pulmonate gastropod mollusk in the family Limacidae. It is now proposed to be a synonym of Lehmannia marginata. It was considered endemic to Iceland but was listed as "Data Deficient" in the IUCN red list due to a lack of detailed distribution data and the co-occurrence with L. marginata.^[1]

Like other limacids, these slugs are slim with a pointed tail, and the pneumostome lies in the posterior half of the mantle. The original description^[2] claimed that L. islandica differed from Lehmannia marginata in being smaller (20 cm) and in its penis being "thickened in its distal section, with a long and pointed flagellum".^[4] However, subsequently these differences have been considered within the range of variation of L. marginata, and also the DNA of an Islandic individual fitting the morphological description did not suggest a difference from that species.^[5]