Gogo is a small genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of catfish

Catfish

Catfishes are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the heaviest and longest, the Mekong giant catfish from Southeast Asia and the second longest, the wels catfish of Eurasia, to detritivores...

es (order

Order (biology)

In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...

 Siluriformes) of the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Anchariidae

Anchariidae

Anchariidae is a family of catfishes order. This small family contains two genera, Ancharius and Gogo. Anchariids are a strictly freshwater group endemic to Madagascar. Anchariids are characterized by the presence of fringed barbels and a reduced anterior nuchal plate.Traditionally, Ancharius is...

. It includes four species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

.

Gogo species are all endemic to freshwater rivers in eastern Madagascar

Madagascar

The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

; they are primarily found in highland habitats with clear, swift water. G. arcuatus is found in the Sandrananta River basin and G. ornatus from the Mangoro River basin; G. brevibarbis is only known from the holotype

Biological type

In biology, a type is one particular specimen of an organism to which the scientific name of that organism is formally attached...

, which is apparently from the Mananjary River

Mananjary River

The Mananjary River is located in southern Madagascar. It drains to the eastern coast, into the Indian ocean. It serves as the southern edge of the territory known as Betsimisaraka.- References :...

 basin. G. atratus is from the Mananara du Nord River drainage in northeastern Madagascar. These fish range in size from about 17.1–25.0 centimetres (6.7–9.8 in) in length.

G. atratus is strictly nocturnal. It reproduces at the end of the dry season and at the onset of the rainy season. The size of the eggs suggests that this species exhibits parental care, though this is unproven. G. atratus feed on aquatic insect

Insect

Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

s and small freshwater shrimp

Shrimp

Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important...

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