''Acestridium'' is a genus of freshwater fish in the family

Loricariidae The Loricariidae is the largest family of catfish (order Siluriformes), with 92 genera and just over 680 species. Loricariids originate from freshwater habitats of Costa Rica, Panama, and tropical and subtropical South America. These fish are not ...

of order

Siluriformes Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of Actinopterygii, ray-finned fish. Named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, catfish range in size and behavior from ...

. The type species is ''Acestridium discus''. The genus name is derived from Latinised Greek 'agkistron' meaning hook. ''Acestridium'' species are native to small streams of the

Amazon Amazon most often refers to: * Amazons, a tribe of female warriors in Greek mythology * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon River, in South America * Amazon (company), an American multinational technology c ...

region of

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

, and

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

. Species of this genus are found in litter banks. Members of this genus typically are long and thin, or 'twiglike' and superficially resemble the genus ''

Farlowella ''Farlowella'' is a genus of fish in the family Loricariidae native to South America. This genus is broadly distributed in Amazon, Orinoco, Paraná and coastal rivers of the Guyana Shield. It is absent from the Pacific slope of the Andes and fro ...

'' of the same family. Adult length is 5–7 cm and each species shows adaptation for camouflage in the water margins - bright green leaf like in ''Acestridium dichromum'' and varigated brown in other species.

Species

There are currently seven recognized species in this genus: * '' Acestridium colombiense'' Retzer, 2005 * '' Acestridium dichromum'' Retzer,

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& Provenzano, 1999 * '' Acestridium discus'' Haseman, 1911 * '' Acestridium gymnogaster''

Reis Reis may refer to : * Reis (surname), a Portuguese and German surname *Reis (military rank), an Ottoman military rank and obscure Lebanese/Syrian noble title Currency * Portuguese Indian rupia (subdivided into ''réis''), the currency of Portugu ...

& Lehmann A., 2009 * '' Acestridium martini'' Retzer,

& Provenzano, 1999 * '' Acestridium scutatum''

& Lehmann A., 2009 * '' Acestridium triplax'' Rodriguez &

, 2007

References

Hypoptopomatini Fish of South America Catfish genera Freshwater fish genera {{Loricariidae-stub