Stenostomidae | |
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Stenostomum simplex | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Platyhelminthes |
Class: | Catenulida |
Family: | Stenostomidae Vejdovsky, 1880 |
Genera[1] | |
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Stenostomidae is a family of freshwater catenulid flatworms. It is the most species-rich family of catenulids, with about 70 species described, most of them in the Neotropics.[2]
Catenulids of the family Stenostomidae are characterized by the brain divided into four clearly separated lobes, two anterior and two posterior, which lie near the mouth. The preoral zone contains a group of sensor cells with ciliated pits organized in long precerebral series.[3]