Aquatic Oligochaete Worm (Ophidonais) is a biological genus in the family Naididae (Aquatic Oligochaete Worm) and order Tubificida (Aquatic Oligochaete Worm).
Ophidonais serpentina
Bratislavia
Stylaria
Bothrioneurum
Vejdovskyella
Slavina
Haemonais
Aulodrilus
Telmatodrilus
Piguetiella
Ilyodrilus
Specaria
Psammoryctides
Tasserkidrilus
Tubifex
Arcteonais
Kopilrok
Peloscolex
Arctodrilus
Ripistes
Alexandrovia
Isochaetides
Chaetogaster
Potamothrix
Pristina
Spirosperma
Stephensoniana
Paranais
Thalassodrilus
Ophidonais
Rhyacodrilus
Rhizodrilus
Uncinais
Limnodrilus
Amphichaeta
Quistadrilus
Branchiura
Allonais
Gianius
Varichaetadrilus
Teneridrilus