''Arion subfuscus'' is a species of land
slug. It forms a
species complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each oth ...
with ''
Arion fuscus
''Arion fuscus'', also known as the "dusky arion", is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.
''Arion subfuscus'' (Draparnaud, 1805) is considered by som ...
''.
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References
subfuscus
Gastropods described in 1805
{{Arionidae-stub