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Hutchinson, 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. S2CID250188836.
Hutchinson, 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. S2CID250188836.