 Despite this deep divergence, they can hybridize among each other, and also with the Japanese giant salamander.One of these clades was identified in 2019 as "Andrias sligoi", a species described in 1924 by Edward George Boulenger and later synonymized with "A. davidianus", with the study supporting its revival as a distinct taxon.Another as-of-yet undescribed species was also identified that formerly inhabited rivers originating from the Huangshan mountains in eastern China.