Gnathodolus is a monospecific genus of freshwater ray-finned fish belonging to the family Anostomidae, the toothed headstanders. The only species on the genus is Gnathodolus bidens, a species which is endemic to the Orinoco and Casiquiare rivers in Venezuela.
Environment Gnathodolus bidens is known to be found in a freshwater environment within a benthopelagic depth range. This species is native to a tropical climate.
Distribution Gnathodolus bidens can be found in South America, Orinoco, Casiquiare rivers, and Venezuela.
Biology Gnathodolus bidens has the ability to breed once the pair is in a heavily dense and weeded area. This species serves as no threat to humans and they are considered to be harmless.
Classification The taxonomic classification of Gnathodolus bidens is as follows: Kingdom : Animalia Phylum : Chordata Subphylum : Vertebrata Superclass : Osteichthyes Class : Actinopterygii Subclass : Neopterygii Infraclass : Teleostei Superorder : Ostariophysi Order : Characiformes Family : Anostomidae Subfamily : Anostominae Genus : Gnathodolus Species : Gnathodolus bidens
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