Gymnelus
Gymnelus is a genus of small fish in the family Zoarcidae found in the Arctic Ocean, and adjacent parts of the North Pacific and North Atlantic. They are highly variable in color, which has resulted in the description of several taxa now considered invalid.
Species
There are currently eleven recognized species in this genus:Gymnelus andersoni Chernova, 1998Gymnelus diporus Chernova, 2000Gymnelus gracilis Chernova, 2000Gymnelus hemifasciatus Andriashev, 1937 Gymnelus obscurus Chernova, 2000Gymnelus pauciporus Anderson, 1982Gymnelus popovi – often in monotypic genus CommandorellaGymnelus retrodorsalis Le Danois, 1913 Gymnelus soldatovi Chernova, 2000Gymnelus taeniatus Chernova, 1999Gymnelus viridis J. C. Fabricius, 1780Many of the above species described in this genus are regarded as synonyms by some authorities.