Tritonia
in botany, a genus of Iridaceæ; about 25 species, all from southern Africa; are cultivated in greenhouses; they have yellow, orange, pink, red, blue, or greenish flowers, and are handsome when in bloom. In zoölogy, the type genus of Tritoniadæ, with 13 species, from Norway and Great Britain; found under stones at low water to 25 25 fathoms. Animal elongated; tentacles with branched filaments; veil tuor digitated; gills in a single series; mouth with horny jaws, stomach simple.