''Dallia'' is a genus of mudminnows native to

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

and

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S ...

. 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.

Species

Three species in this genus are recognized: ''

Dallia admirabilis ''Dallia'' 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 ye ...

'' Chereshnev, 1980 (Amguema blackfish) ''

Dallia delicatissima ''Dallia delicatissima'' is a species of mudminnow in the genus '' Dallia'' of the order Esociformes. It is endemic to the Chukchi Peninsula in far eastern Siberia, Russia, being known from only two lakes of the Kolychiskaya Guba Bay basin: Pi ...

'' Smitt, 1881 (Pilkhykay blackfish) ''

Dallia pectoralis The Alaska blackfish (''Dallia pectoralis'') is a species of freshwater fish in the esocid family (Esocidae) of order Esociformes. It inhabits Arctic regions of Alaska as well as Siberia and the Bering Sea islands. Description Alaska blackfish a ...

'' T. H. Bean, 1880 (Alaska blackfish) Mitochondrial sequence data was examined from ''D. pectoralis'' and ''D. admirabilis'' and did not indicate that speciation within the genus in Russia; however, genetic isolation within Alaska for populations of ''D. pectoralis'' could be high and associated with karyotype differences.

References

Umbridae Ray-finned fish genera Taxa named by Tarleton Hoffman Bean {{esociformes-stub