Aquatic Oligochaete Worm (Rhyacodrilus coccineus) is a species of the class Clitellata in the family Naididae (Aquatic Oligochaete Worm) and order Tubificida (Aquatic Oligochaete Worm).
Rhyacodrilus coccineus
Rhyacodrilus sodalis
Rhyacodrilus falciformis
Rhyacodrilus brevidentatus
Rhyacodrilus subterraneus