Biota | Animalia | Echinodermata | Echinozoa | Holothuroidea | Actinopoda | Dendrochirotida | Heterothyonidae | Heterothyone
|  | Klein, 1778 | Haeckel in Zittel, 1895 | de Blainville, 1834 | Ludwig, 1891 | Grube, 1840 | Pawson, 1970 | Panning, 1949