aquatic oligochaete worm
- kingdom: Animalia
- phylum: Annelida
- class: Clitellata
- order: Haplotaxida
- family: Naididae
- genus: Ophidonais
- species: Ophidonais serpentina
- Belgium
Jülich- Niederzier
- Schwalmtal
- Velen
- Wegberg
- Werne
North Rhine-Westphalia- Biebelsheim
- Dörrmoschel
- Gensingen
- Grolsheim
- Schönborn
- Teschenmoschel
Rheinland-Pfalz- Mittelherwigsdorf
- Neschwitz
Saxony
Germany
Kerkrade
Limburg
Netherlands
Falkenberg
Halland- Göteborg
Västra Götaland- Linköping
Östergötland
Sweden
Begijnendijk