Abstract
A new ogcocephalid fish, Dibranchus japonicus, is described from deep waters around Japan.The species differs from other members of the genus in having a toothless vomer and palatine, spines moderately developed on the body, a circular disk, blackish body and fins without any blotches, in addition to some proportional measurements.This new species is the first discovery of a member of the genus Dibranchus from Japanese waters.
