- Source: Spiridion (annelid)
Spiridion is a genus of annelids belonging to the family Naididae.
The species of this genus are found in Europe, Russia and Northern America.
Species:
Spiridion insigne Knöllner, 1935
Spiridion modricensis (Hrabĕ, 1973)
Spiridion phreaticola (Juget, 1987)
Spiridion scrobicularae Lastoćkin, 1937