''Denticetopsis iwokrama'' is a species of

whale catfish The Cetopsidae are a small family of catfishes (order Siluriformes), commonly called the whale catfishes. Taxonomy This family contains five genera divided into two subfamilies, Cetopsinae and Helogeneinae. Helogeneinae was previously a family-l ...

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...

where it is only known from the type locality in the

Siparuni River The Siparuni River is a river in the Potaro-Siparuni Region of Guyana. It is a tributary of the Essequibo River. Tributaries of the Siparuni River include the Takutu River, Burro-Burro River, Tipuru River and Levai Creek. Archaic petroglyph ...

basin. This species grows to a length of 4.3 cm (1.7 inches).

References

* Cetopsidae Catfish of South America Endemic fauna of Guyana Fish of Guyana Fish described in 2005 {{siluriformes-stub