Typhloplanidae

Typhloplanidae is a family of flatworms in the order Rhabdocoela.
It is one of the most species-rich families of Rhabdocoela, comprising around 300 species. They inhabit freshwater, estuarine, marine and terrestrial habitats. They can be benthic or pelagic. Typhloplanidae are predatory. They can reach high densities in their habitats. Most representatives are 1 to 5 mm in length, but a few species, like "Mesostoma ehrenbergii", can reach up to 1.5 cm.
Subfamilies and genera (incomplete):