Peckoltia is a genus of small South American armored suckermouth catfishes. Many of these fish are popular aquarium fish.
Hemiancistrus is a genus of suckermouth armored catfishes. These species are native to South America. The taxonomy of this genus is complex and unclear, and major work has to be done. Many of these fish are popular aquarium fish.
Peckoltia sabaji is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Rupununi, the Essequibo River, and the Takutu River in Guyana, as well as the basins of the Casiquiare canal, the Rio Negro, the Cinaruco River, and the Orinoco in Venezuela. It is usually found among boulders in medium to large rivers. The species reaches 19.8 cm SL and is of disputed classification.
Peckoltichthys bachi is a species of armored catfish and the only member of its genus. This species is found throughout the upper Amazon River and its tributaries in Brazil, Colombia, Ecuador, and Peru. The species reaches 14 cm (5.5 in) SL. FishBase lists this species as a member of Peckoltia.
Hemiancistrus subviridis, the green phantom pleco, is a species of armored catfish from the family Loricariidae, commonly found in Venezuela. Within Venezuela, it is native to the Orinoco and Casiquiare drainage basins, where it is usually found among granitic rocks in flowing water. The species reaches 15 cm SL.
Hemiancistrus cerrado is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Araguaia River basin in the Tocantins River drainage in Brazil. It is usually found in rocky riffles in second-order streams. The species reaches 17 cm SL and is named for the Cerrado, the ecoregion in which it occurs.
Hemiancistrus fuliginosus is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Uruguay River basin. The species reaches 16.2 cm SL.
Hemiancistrus furtivus is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Esmeraldas River basin in Ecuador. The species reaches 9.98 cm SL and was described in 2017 by Francisco Provenzano and Ramiro Barriga of the Central University of Venezuela, who report its placement in the genus Hemiancistrus to be tentative and suggest that it may belong to the tribe Hypostomini rather than Ancistrini, where it is currently placed. As of May 2022, FishBase does not list this species.
Hemiancistrus landoni is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Guayas River basin in Ecuador. The species reaches 25 cm in total length.
Hemiancistrus megalopteryx is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Tubarão River basin in the state of Santa Catarina in Brazil. The species reaches 28.6 cm SL.
Hemiancistrus meizospilos is a species of catfish in the family Loricariidae. It is sometimes known as the southern orange-spotted pleco. The type locality of H. meizospilos is given as the Chapecó River in the vicinity of Coronel Freitas in the Brazilian state of Santa Catarina.
Peckoltia ephippiata is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it is known from the Leitão River, which is part of the Madeira River drainage in the state of Rôndonia in Brazil. The species reaches 10.2 cm SL.
'Pseudancistrus' megacephalus is a species of catfish in the family Loricariidae. It is of uncertain and disputed classification.
Hypostomus annectens is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Cayapas River basin in Ecuador and the Patía River basin in Colombia. The species reaches 28 cm in total length and is believed to be a facultative air-breather. It is listed by ITIS as a member of Hemiancistrus as opposed to Hypostomus, which it is classified under according to FishBase.
Hypostomus itacua is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it occurs in the middle Paraná River basin. The species reaches 11 cm in total length and is believed to be a facultative air-breather. The type specimen of the species is apparently lost and its classification within Loricariidae is uncertain. It is sometimes treated as a species of Hemiancistrus.
Hypostomus aspidolepis is a species of catfish in the family Loricariidae that is of disputed taxonomic identity. It is a freshwater fish native to Central America, where it occurs in the Gatún River basin in the Caribbean coastal drainage of Panama. The species reaches 40 cm in standard length and is believed to be a facultative air-breather. Although originally described as a member of Chaetostomus by Albert Günther in 1867, it has subsequently been classified within Hypostomus, the now-invalid genus Plecostomus, and Hemiancistrus. A 2015 review conducted by Jonathan W. Armbruster, David C. Werneke, and Milton Tan recognized the species within Hypostomus, although sources such as FishBase, WoRMS and ITIS still consider it a member of Hemiancistrus.
Hypostomus holostictus is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it occurs in the San Juan River basin in Colombia. The species reaches 18 cm in total length and is believed to be a facultative air-breather. It was originally described in 1913 by Charles Tate Regan as a species of Hemiancistrus, and it is still sometimes referred to by the name Hemiancistrus holostictus.
Ancistomus micrommatos is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it is known only from the Tocantins River basin in Brazil. The species reaches 11.9 cm in standard length. Although originally described as a species of Hemiancistrus in 2003, a 2015 review conducted by Jonathan W. Armbruster, David C. Werneke, and Milton Tan listed the species as valid within Ancistomus. The same review also reported that no characteristics were found to separate A. micrommatos from its congeners A. spilomma and A. spinosissimus, indicating that the three may actually all be the same species.
Ancistomus spilomma is a species of catfish in the family Loricariidae. It is native to South America, where it is known only from the Tocantins River basin in Brazil. The species reaches 14.2 cm in standard length. Although originally described as a species of Hemiancistrus in 2003, a 2015 review conducted by Jonathan W. Armbruster, David C. Werneke, and Milton Tan listed the species as valid within Ancistomus. The same review also reported that no characteristics were found to separate A. spilomma from its congeners A. micrommatos and A. spinosissimus, indicating that the three may actually all be the same species.
Ancistomus spinosissimus is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it is known only from the upper and middle Tocantins River basin in Brazil. The species reaches 12.7 cm in standard length. Although originally described as a species of Hemiancistrus in 2003, a 2015 review conducted by Jonathan W. Armbruster, David C. Werneke, and Milton Tan listed the species as valid within Ancistomus. The same review also reported that no characteristics were found to separate A. spinosissimus from its congeners A. micrommatos and A. spilomma, indicating that the three may actually all be the same species.
