The name Ambigolimax nyctelius (and similarly Lehmannia nyctelia and Limax nyctelius) has been used to refer to several species of air-breathing land slugs (terrestrialpulmonategastropodmolluscs) in the family Limacidae. An article published in 2022[1] revealed this confusion and furthermore showed that the original description applied to a slug species in a different family. The above names are therefore no longer appropriate and care is need to interpret the meaning of earlier usages.[2]
Letourneuxia nyctelia (family Arionidae) is the slug originally described. Until 2022 it was mostly known as Letourneuxia numidica;[3]
Ambigolimax waterstoni is believed native in Algeria but has been reported also from South Africa, Australia, New Zealand, Elba and some Scottish botanic gardens;[4]
Ambigolimax parvipenis is a widespread invasive species in the British Isles and California, and has been reported also from Spain, France, Greece and Arizona;[5]
Simroth and Pollonera used the species name nyctelia for a poorly known species from North Africa attributed to the genus Malacolimax.[7][8]
^ abHutchinson, John M.C.; Reise, Heike; Schlitt, Bettina (30 June 2022). "Will the real Limax nyctelius please step forward: Lehmannia, Ambigolimax, or Malacolimax? No, Letourneuxia!". Archiv für Molluskenkunde. 151 (1): 19–41. doi:10.1127/arch.moll/151/019-041.
^Simroth, H. (1885). "Versuch einer Naturgeschichte der deutschen Nacktschnecken und ihrer europäischen Verwandten". Zeitschrift für Wissenschaftliche Zoologie. 42: 203–366, pls 7–11.