A monodont (< mono- 'single' + odont 'tooth') is an animal with one tooth.
Sea snails
Various sea snails of the family Trochidae Genus Monodonta has multiple members Monodonta canalifera, the canal monodont Genus Phorcus Phorcus punctulatus, the punctate monodont Phorcus turbinatus, the turbinate monodont Diloma aethiops, the scorched monodont Clanculus undatus, the wavy Australian monodont
Moth
Monodonta (moth), a genus of moths Monodonta passalis, the only species of the genus
Whales
Cetaceans of the family Monodontidae, the monodontids Genus Monodon The narwhal, Monodon monoceros The beluga whale