Genus of fishes
Gobiesox is a genus of clingfishes found in the Americas, including offshore islands. Most species inhabit coastal marine and brackish waters, but "G. lanceolatus" is a deep-water species found at a depth of around , and seven species ("G. cephalus", "G. fluviatilis", "G. fulvus", "G. juniperoserrai", "G. juradoensis", "G. mexicanus" and "G. potamius") are from fast-flowing rivers and streams. These seven are the only known freshwater clingfish.
The genus includes both widespread and common species, and more restricted species that are virtually unknown. Three freshwater species that are endemic to Mexico ("G. fluviatilis", "G. juniperoserrai" and "G. mexicanus") are considered threatened by Mexican authorities, and three species that are endemic to small offshore islands ("G aethus" and "G. canidens" of the Revillagigedo Islands, and "G. woodsi" of Cocos Island) are considered vulnerable by the IUCN.
"Gobiesox" are small fish, mostly less than , but at up to in standard length the largest species are among the largest clingfish.
Species.
There are currently 30 recognized species in this genus. However, genetic studies have shown that "Pherallodiscus" should be merged into "Gobiesox" (adding two species to "Gobiesox").
References.
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