Umbridae

Umbridae is a family of ray-finned fish in the order Salmoniformes. The single living genus, Umbra, occupies weed-choked freshwater habitats in eastern North America and eastern Europe. While the family traditionally contained the genera Umbra, Novumbra, and Dallia, recent genetic and paleontological research have recovered this grouping as paraphyletic, with Novumbra and Dallia being moved to the family Esocidae.

genus of minnows

species of fish

Dallia (Blackfish) is a genus of mudminnows native to Russia and Alaska. Molecular data indicates the genus is more closely related to Esox and Novumbra than Umbra. Dallia diverged from Novumbra + Esox approximately 66 million years ago. The genus was named after American naturalist William Healey Dall.

species of fish

Novumbra is a genus of mudminnows (family Umbridae) native to Oregon and Washington state, USA. Molecular data suggests that this genus is more closely related to Esox than Dallia and Umbra. Novumbra diverged from Esox roughly 65 million years ago in the Paleocene.