Genus Otaria is a taxonomic classification that refers to a group of species of eared seals, all of which belong to the family Otariidae. These seals are known for their characteristic ear flaps, which distinguish them from true seals that lack ear flaps. The genus Otaria includes two extant species: the South American sea lion (Otaria flavescens) and the New Zealand sea lion (Otaria byronia). Synonyms for Otaria include the generic name Otarion, as well as the common names sea lion and fur seal. These synonyms reflect the physical characteristics and behavior of these animals, such as their sleek bodies and ability to move with agility and grace in water.