Tricladida
From Wikipedia, the free encyclopedia
Triclads | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Schmidtea mediterranea
|
||||||||||
Scientific classification | ||||||||||
|
||||||||||
Sub orders | ||||||||||
|
Tricladida (Triclads) [1] is an order of the Turbellaria, a group of free-living flatworms.
Tricladida (Lang, 1884) is characterized by triply-branched intestine and anteriorly situated ovaries, next to the brain. Today it is split into three suborders, according to their habitats: Maricola, which is marine; Paludicola, which inhabits freshwater; and Terricola, which is land-dwelling (Hallez 1892). Recently, the adding of a new suborder, Cavernicola (Sluys 1990), was proposed for freshwater cave species.
Tricladida includes the Planariidae (planarians).
[edit] References
- ^ Trachymedusae (TSN 54468). Integrated Taxonomic Information System. Retrieved on July 23, 2007.