Analysis of information sources in references of the Wikipedia article "Balaenidae" in English language version.
Although Rice believed that all right whales belong with the bowhead in the genus Balaena, recent genetic analysis have recognized three separate right whale species, in the genus Eubalaena: in the North Atlantic (E. glacialis); in the North Atlantic (E. japonica); and in the Southern Hemisphere (E. australis).
The study by Churchill (2007) now has provided the evidence to conclude that the three living right whale species do comprise a phylogenetic lineage distinct from the bowhead and are rightly classified into a separate genus.