• Triodon Cuvier, 1829
• Triodon Rich. accepted as Rhynchospora Vahl
• Triodon albus (L.) Farw. accepted as Rhynchospora alba (L.) Vahl
• Triodon albus var. macer (C.B.Clarke ex Britton) Farw. accepted as Rhynchospora macra (C.B.Clarke ex Britton) Small
• Triodon bursaris Cuvier, 1829 accepted as Triodon macropterus Lesson, 1831
• Triodon bursarius Cuvier, 1829 accepted as Triodon macropterus Lesson, 1831
• Triodon capillaceus (Torr.) Farw. accepted as Rhynchospora capillacea Torr.
• Triodon macropterus Lesson, 1831
• Triodon macroptrus Lesson, 1831 accepted as Triodon macropterus Lesson, 1831
• Triodon setaceus Rich. ex Pers. accepted as Rhynchospora tenerrima subsp. tenerrima Nees ex Spreng.
• Triodonta Koenen, 1893 † accepted as Lucinoma Dall, 1901
• Triodonthea Macpherson & Robainas-Barcia, 2013
• Triodonthea setosa Macpherson & Robainas-Barcia, 2013
• Triodontidae Bleeker, 1859
• Triodontoderes Sørensen & Rho, 2009
• Triodontoderes anulap Sørensen & Rho, 2009
• Triodontoderes lagahoo Cepeda, Sánchez & Pardos, 2019
• Triodontolaimidae (De Coninck, 1965) Hope & Murphy
• Triodontolaiminae De Coninck, 1965
• Triodontolaimus de Man, 1893
• Triodontolaimus acutus (Villot, 1875) de Man, 1893
• Triodontolaimus lacustris Micoletzky, 1913 accepted as Chromadora lacustris Micoletzky, 1914 accepted as Cyatholaimus lacustris Micoletzky, 1922 accepted as Achromadora terricola (de Man, 1880) Micoletzky, 1924
• Triodontophorus Looss, 1902
• Triodontophorus brevicauda Boulenger, 1916
• Triodontophorus brochotrilobulatus Martinez Gomez, 1966
• Triodontophorus minor (Looss, 1900) Looss, 1902
• Triodontophorus nipponicus Yamaguti, 1943
• Triodontophorus serratus (Looss, 1900) Looss, 1902
• Triodontophorus tenuicollis Boulenger, 1916
• Triodontus Looss, 1900 accepted as Triodontophorus Looss, 1902
• Triodontus minor Looss, 1900 accepted as Triodontophorus minor (Looss, 1900) Looss, 1902
• Triodontus serratus Looss, 1900 accepted as Triodontophorus serratus (Looss, 1900) Looss, 1902