Lagenorhynchus

species of mammal

Lagenorhynchus is a genus of oceanic dolphins in the infraorder Cetacea, that formerly contained six extant species. However, there was consistent molecular evidence that the genus is polyphyletic and several of the species moved to other genera, leaving only the white-beaked dolphin in this genus among extant species. In addition, the extinct species Lagenorhynchus harmatuki is also classified in this genus.