Arion ater subsp. ater ater (Linnaeus 1758

LINNAEUS (1758: 652) described both A. ater and A. rufus. If we consider these taxa as conspecific, which name has priority depends on the first reviser. Already MÜLLER (1774: 2) treated ater as having priority, but he did not mention the name rufus (he used the earlier name subrufus for what LINNAEUS (1758) called rufus), so cannot count as a reviser. At latest, FLEMING (1822: 572) explicitly treated A. rufus as a variety of A. ater, and this is the priority consistently followed by others who consider the taxa conspecific. The nominotypical A. ater ater (Linnaeus, 1758) is our AR morphotype
Published as part of Reise, Heike, Schwarzer, Anne-Katrin, Hutchinson, John M. C. & Schlitt, Bettina, 2020, Genital morphology differentiates three subspecies of the terrestrial slug Arion ater (Linnæus, 1758) s. l. and reveals a continuum of intermediates with the invasive A. vulgaris Moquin-Tandon, 1855, pp. 1-34 in Folia Malacologica 28 (1) on page 29, DOI: 10.12657/folmal.028.001, http://zenodo.org/record/4615365
{"references":["LINNAEUS [LINNAEUS] C. 1758. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. Salvius, Holmiae. https: // doi. org / 10.5962 / bhl. title. 542","MULLER O. F. 1774. Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia. Volumen alterum. Heineck & Faber, Havniae & Lipsiae. https: // doi. org / 10.5962 / bhl. title. 46299","FLEMING J. 1822. Mollusca. In: [NAPIER M. (ed.)] Supplement to the fourth, fifth and sixth editions of the Encyclopaedia Britannica with preliminary dissertations on the history of sciences. Vol. 5. Constable, Edinburgh, pp. 567 - 584."]}