Catenulida
| Catenulida | |
|---|---|
| Catenula lemnae | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Catenulida Meixner, 1924 |
| Families | |
| Synonyms | |
|
Notandropora Reisinger, 1924 | |
Catenulida is an order of flatworms in the classical classification, or a class of flatworms in a phylogenetic approach. They are relatively small free-living flatworms, inhabiting freshwater and marine environments. There are about 100 species described worldwide, but the simple anatomy makes species distinction problematic.