. "Anhinginae (Ridgway, 1887)" . "Family-level:" . . "Genus-level:" . . "Darter (bird)"@en . "Plottidae" . . "Ptynx(M\u00F6hring1752 (pre-Linnean)" . . "Plotidae" . "Plotinae (Rafinesque, 1815)" . "----" . . "Ptinx(Bonaparte, 1828)" . "Ptynginae(Poche, 1904)" . "The darters or snakebirds are mainly tropical waterbirds in the family Anhingidae having a single genus Anhinga. There are four living species, three of which are very common and widespread while the fourth is rarer and classified as near-threatened by the IUCN. The term \"snakebird\" is usually used without any additions to signify whichever of the completely allopatric species occurs in any one region."@en . "Plotus (Linnaeus1766)" . "Plottinae" . "Plottus (Scopoli, 1777 (unjustified emendation)" .