Cordylancistrus is a genus of suckermouth armored catfish native to South America. It is much the same as Chaetostoma. The few differences are a wider head, longer cheek odontodes, and plates on the snout. Cordylancistrus can be found in rivers and streams high in the Andes, from Venezuela to Colombia.
Chaetostoma, also known as the bristlemouth catfish, is a genus of suckermouth armored catfishes native to South America with one species, C. fischeri, extending into Panama. Most species inhabit flowing rivers in the lower Andes and its foothills. Some species are kept in unheated aquaria.
Chaetostoma carrioni is a species of armored catfish from South America. These fish reach 7.8 centimetres (3.1 in) SL. These fish are demersal and live in tropical, freshwater habitats. They are found in the Marañón River basin in Ecuador.
Chaetostoma aburrensis is a species of catfish in the family Loricariidae. It is native to South America, where it is known only from Colombia.
Chaetostoma anale is a species of catfish in the family Loricariidae. It is a freshwater species native to South America, where it occurs in the Orteguaza River basin, which is part of the Japurá River drainage in Colombia. The species reaches 16 cm in total length.
Chaetostoma anomalum is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of Lake Maracaibo, the Chama River, the Capazon River, and the Escalante River in Venezuela. The species reaches 16 cm in total length.
Chaetostoma bifurcum is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it is found in the Pacific coastal drainages of Ecuador and Peru, including the basins of the Esmeraldas River, the Guayas River, the Santa Rosa River, and the Tumbes River. It inhabits regions of foothills at an elevation of 100 to 650 m above sea level. The species reaches 14 cm SL.
Chaetostoma branickii is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Chamaya River basin, which is part of the Marañón River drainage in Peru. The species reaches 13.2 cm SL.
Chaetostoma breve is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Zamora River basin, which is part of the Marañon River drainage in Ecuador. The species is large for a loricariid, reaching 30 cm in total length.
Chaetostoma changae is a species of catfish in the family Loricariidae. It is native to South America, where it is known only from Peru. The species reaches 7.6 cm SL and its specific epithet honors Fonchii Chang, a Peruvian ichthyologist.
Chaetostoma yurubiense is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Aroa River, the Yaracuy River, and the Urama River in Venezuela. The species is found in rocky riffles in clear upland headwaters and small creeks, and it reaches 17 cm SL.
Chaetostoma venezuelae is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the San Juan River basin in Venezuela. The species reaches 7.3 cm SL.
Chaetostoma vasquezi is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Orinoco, the Caura River, and the Caroní River in Venezuela. The species reaches 18.7 cm SL.
Chaetostoma vagum is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Orteguaza River basin, which is part of the Japurá River drainage in Colombia. The species reaches 9.9 cm SL.
Chaetostoma trimaculineum is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the drainage basins of the Santiago River and the Marañón River in Ecuador and Peru. The species reaches 16 cm SL.
Chaetostoma thomsoni is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Magdalena River basin in Colombia. The species reaches 10.1 cm in total length. It is sometimes seen in the aquarium trade, sometimes as Chaetostoma thomasi, a name which originated as a misspelling but has become relatively widely used despite being incorrect.
Chaetostoma taczanowskii is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the basins of the Huallaga River and the Urubamba River in Peru. The species reaches 17 cm in total length.
Chaetostoma tachiraense is a species of catfish in the family Loricariidae. It is a freshwater fish native to South America, where it occurs in the Catatumbo River basin at altitudes of up to 1,000 to 2,000 m. The species reaches 8.7 cm SL.
Chaetostoma chimu is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Andean foothills of the Orinoco basin in Colombia. It was described in 2020 by Alexander Urbano-Bonilla and Gustavo A. Ballen on the basis of the distinctive morphology and coloration of the 119 specimens examined. FishBase does not list this species.
