Gobionotothen
Gobionotothen is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes. They are native to the Southern Ocean. Taxonomy. "Gobionotothen" was first formally described in 1976 by the Russian ichthyologist Arkady Vladimirovich Balushkin with the type species designated as "Notothenia gibberifrons" which was described by the Swedish naturalist Einar Lönnberg in 1905 with its type locality given as South Georgia. Some authorities place this taxon in the subfamily Nototheniinae, but the 5th edition of "Fishes of the World" does not include subfamilies in the Nototheniidae. The name of the genus is  a compound of "gobio" meaning “goby”, referring to the goby-like form of these species and "notothen", indicating that it is a nothothen. Species. Five recognized species are in this genus: Characteristics. "Gobionotothen" fishes have elongate bodies which are compressed towards the rear. The head has a convex dorsal profile and the space between the eyes is narrow. The mouth is small without a protruding lower jaw and they do not have large canine-like teeth. They have two lateral lines made up of tubed scales. The head is scaly, excep for the snout, lower jaw, the preorbital and the  edge if the preoperculum. They have a rounded caudal fin. The species vary in maximum total length from in "G. angustifrons" to in "G. gibberifrons". Distribution, habitat and biology. "Gobionotothen" fishes have only been recorded from the northern part of the Antarctic Peninsula and the subantarctic islands. They are benthic predators feeding mainly on benthic invertebrates with some fish eggs and krill taken when available. Fisheries. "Gobionotothen" species, particularly "G. gibberifrons", are moderately important to commercial fisheries off the South Georgia, South Shetland and South Orkney Islands.