Lutra is a genus of otters, one of seven in the subfamily Lutrinae. Taxonomy and evolution. The genus includes these species: Extant species. Extinct species. †Lutra affinis. †Lutra bressana . †Lutra bravardi. †Lutra castiglionis. †Lutra euxena. †Lutra fatimazohrae. †Lutra franconica. †Lutra hearsti. †Lutra palaeindica. †Lutra simplicidens. †Lutra trinacriae. The genus most likely evolved in Asia during the late Pliocene epoch; the oldest fossil belonging to the genus is of the species L. palaeindica, and dates from the late Pliocene. Habitat.
https://en.wikipedia.org/wiki/Lutra