Octolasion is a genus of annelids belonging to the family Lumbricidae.
The species of this genus are found in Europe and Northern America.
Species: Octolasion alpinum Örley, 1885 Octolasion frivaldszkyi Örley, 1885 Octolasion tyrtaeum Savigny, 1826, Octolasion lacteum Örley, 1881 Octolasion cyaneum Savigny, 1826
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