| Cephalosilurus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Pseudopimelodidae |
| Genus: | Cephalosilurus Haseman, 1911 |
| Type species | |
| Cephalosilurus fowleri Haseman 1911 | |
Cephalosilurus is a small genus of catfishes (order Siluriformes) of the family Pseudopimelodidae. The genus was first described in 1911.
In 2021, it was considered a junior synonym of Lophiosilurus. [1]
As of 2012, there were currently four recognized species in this genus: [2]
With the reclassification in 2021, they became L. albomarginatus, L. apurensis, L. fowleri, and L. nigricaudus. [1]
Cephalosilurus species originate from South America. C. albomarginatus is found in Tukeit, Guyana. [3] C. apurensis is distributed in the Rio Arichuna, Apure, Venezuela. [4] C. fowleri originates from the São Francisco River basin. [5] C. nigricaudus is found in the Sipaliwini District of Suriname. [6]
Cephalosilurus species have a great range in size. C. albomarginatus reaches 8.5 centimetres (3.3 in) SL. [3] C. apurensis grows to a length of 29 cm (11 in) SL. [4] C. fowleri can grow to 40 cm (16 in) TL. [5] C. nigricaudus reaches a length of 35 cm (14 in) TL. [6]
C. albomarginatus is known to occur over sand and gravel partially covered with mud, leaves and dead wood. [3] C. nigricaudus occurs in pools and in the backwater of rapids and fast streams with sand, rocks, and decaying wood on the bottom; it is found together with Bryconops caudomaculatus , Characidium blennoides , Pimelodella cristata , Leporinus friderici and Astyanax meunieri . [6]
C. fowleri may be kept in the aquarium. This fish is an aggressive species and should be kept alone or with fish that are much larger than it. Though large, it is sedentary and does not require as much room as a similarly-sized active species of fish might. These fish should be fed sparingly and the aquarium kept clean. [7]
Callichthyidae is a family of catfishes, called armored catfishes due to the two rows of bony plates along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many species in the genus Corydoras.
Corydoras is a genus of freshwater catfish in the family Callichthyidae and subfamily Corydoradinae. The species usually have more restricted areas of endemism than other callichthyids, but the area of distribution of the entire genus almost equals the area of distribution of the family, except for Panama where Corydoras is not present. Corydoras species are distributed in South America where they can be found from the east of the Andes to the Atlantic coast, from Trinidad to the Río de la Plata drainage in northern Argentina. Species assigned to Corydoras display a broad diversity of body shapes and coloration. Corydoras are small fish, ranging from 2.5 to 12 cm in SL., and are protected from predators by their body armor and by their sharp, typically venomous spines.
The sixray corydoras or false corydoras is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It originates in inland waters in South America, and is found in the upper Araguaia River basin in Brazil.
Rineloricaria is a genus of freshwater tropical catfish belonging to the family Loricariidae. They are commonly called whiptail catfish because of the long filament that grows out of the tip of the caudal fin that is characteristic of the genus. With the exception of R. altipinnis from Panama, they are native to the rivers of northern and central South America. Some species are regularly seen in the aquarium trade.
The Pseudopimelodidae are a small family of catfishes known as the bumblebee catfishes or dwarf marbled catfishes. Some of these fish are popular aquarium fish.
Microglanis is a genus of fish in the family Pseudopimelodidae native to South America. This genus has the widest distribution within its family, with species ranging from the Guianas to Venezuela; western slope of the Andes in Ecuador and Peru to the Río de La Plata basin in Argentina. They occur eastward to the Orinoco and Amazon basins. It is also present in the eastern coastal rivers of Brazil.
Microglanis leptostriatus is a species of catfish belonging to the family Pseudopimelodidae. It appears to be entirely restricted to the middle and upper basin of the São Francisco River in Brazil.
Brachyplatystoma is a genus of catfish from the family Pimelodidae. As the occasionally used common name goliath catfishes indicates, this genus includes some of the largest species of catfish, including the piraíba, B. filamentosum, which reaches up to the region of 3.6 metres (12 ft) in length. Brachyplatystoma are found in the Amazon and Orinoco basins, and other tropical freshwater and brackish habitats in South America. Some species are migratory. These fish are important as food fish and, to some extent, aquarium fish.
Calophysus macropterus is a species of catfish of the monotypic genus Calophysus of the family Pimelodidae.
Lophiosilurus alexandri is a species of catfish of the family Pseudopimelodidae, and the only species of the monotypic genus Lophiosilurus.
Cruciglanis is a genus of catfish of the family Pseudopimelodidae. It contains a single recognized species, Cruciglanis pacifici.
Batrochoglanis is a small genus of catfishes of the family Pseudopimelodidae.
Pimelodus is a genus of fish in the family Pimelodidae native to Central and South America.
Harttia is a genus of armored catfishes native to South America.
Loricaria is a genus of armored catfish native to South America.
Exostoma is a genus of sisorid catfishes native to Asia. These species are distributed in the Brahmaputra drainage of north-eastern India, and east and south to the Salween drainages in Burma. E. berdmorei is found in the Sittang and Salween drainages in Burma. E. labiatum is known from the Brahmaputra drainage in north-eastern India, but has also been recorded in the Salween drainage in Burma, the Ayeyarwady drainage in China, and the Brahmaputra drainage in Tibet and Burma. E. stuarti is from the Ayeyarwady River of Burma and India; however, it has not been collected since its original discovery. E. labiatum is found in mountain rapids.
Gagata is a genus of sisorid catfishes native to Asia.
Pseudostegophilus is a genus of pencil catfishes native to rivers in tropical South America. The members of this genus are obligate parasites that feed on scales and mucus of other fish.
Plotosus is a genus of eeltail catfishes native to the Indian Ocean, the western Pacific Ocean and New Guinea.
Cryptarius is a genus of catfishes of the family Ariidae. It includes two species, C. daugeti and C. truncatus. Cryptarius species originate from brackish waters of south and southeast Asia.