Gnathodolus

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.

Gnathodolus
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Characiformes
Family:	Anostomidae
Subfamily:	Anostominae
Genus:	Gnathodolus Myers, 1927
Species:	G. bidens
Binomial name
Gnathodolus bidens Myers, 1927

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.^[2]

Distribution

Gnathodolus bidens can be found in South America, Orinoco, Casiquiare rivers, and Venezuela.^[2][3]

Biology

Gnathodolus bidens has the ability to breed once the pair is in a heavily dense and weeded area.^[2] This species serves as no threat to humans and they are considered to be harmless.^[4]

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^[5][6][7]