| Otothyropsis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Tribe: | Otothyrini |
| Genus: | Otothyropsis Ribeiro, Carvalho & Melo, 2005 |
| Type species | |
| Otothyropsis marapoama Ribeiro, Carvalho & Melo, 2005 [1] | |
Otothyropsis is a genus of armored catfishes native to South America.
There are currently 5 recognized species in this genus:
Otocinclus is a genus of catfish in the family Loricariidae native to South America, commonly known as "dwarf suckers" or "otos". This genus, like other loricariids, is characterized by rows of armour plating covering the body, as well as the underslung suckermouth. They are generally small in size; O. tapirape is the smallest of the species (2.4 cm), while O. flexilis is the biggest (5.5 cm). These species have adaptations that allow them to breathe air. A duct forms at the junction between the esophagus and the stomach and expands into an enlarged, ring-like diverticulum, characteristic of this genus, which allows air-breathing. Otocinclus are popular aquarium fish, and they are often purchased as algae eaters. It is difficult to breed them in captivity, and only wild caught Otocinclus are available to hobbyists. This genus is widely distributed east of the Andes of South America, throughout the lowlands from northern Venezuela to northern Argentina, but are generally absent from the Amazon and the Orinoco lowlands.
Aspidoras is a genus of catfishes of the family Callichthyidae from 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.
Trichomycterus is a genus of fish in the family Trichomycteridae, the largest genus of its family with over 170 species currently described. This genus is native to freshwater habitats in Central and South America. These fish are generally small, usually about 5 to 15 cm (2–6 in) in standard length, although the largest, T. rivulatus, can reach more than twice this size. Species differ from one another primarily in body proportions, fin ray counts and colouration. Despite their relatively small size, some, such as T. punctulatus, support fisheries and are important in the local cuisine.
Otothyropsis marapoama is a species of armored catfish endemic to Brazil.
The Hypoptopomatinae are a subfamily of catfishes of the family Loricariidae, composed of 17 genera and approximately 80 species. This subfamily represents about one-tenth of all loricariid species.
Hisonotus is a genus of armored catfishes native to South America. Species of Hisonotus and Curculionichthys are the only representatives of the subfamily Otothyrinae having serrae on the posterior edge of the pectoral fin spine. These species are small fishes, generally found in small fast flowing streams, where they grasp to the branches and leaves of aquatic or subaquatic plants. The species of this genus mostly occur in Atlantic coastal streams of southern Brazil and the Paraguay-Paraná system of southern South America. They are also distributed in the Río de La Plata basin and coastal rivers of southeastern Brazil.
Microlepidogaster is a genus of armored catfishes native to South America.
Pseudotothyris is a genus of armored catfishes native to South America.
Pareiorhaphis is a genus of catfish in the family Loricariidae native to South America. This genus can be readily distinguished from other neoplecostomines by the unique combination of having fleshy lobes on lateral margins of head ornamented with hypertrophied odontodes on nuptial males, caudal peduncle ovoid in cross section, abdomen usually naked, dorsal fin spinelet ovoid and adipose fin usually present. The color pattern is usually dark brown and mottled with the abdomen white. Most species in to Pareiorhaphis were originally described in Hemipsilichthys. In 1918, Alípio de Miranda-Ribeiro proposed the new genus Pareiorhaphis. Whether Pareiorhaphis is monophyletic or not is currently unknown.
Neoplecostominae is a subfamily of South American catfishes of the family Loricariidae. Species of this subfamily live in high-mountain and swift-flowing river habitats.
Parotocinclus is a genus of fish in the family Loricariidae native to South America. This genus is distributed through almost all hydrographic systems in South America from the Guyana Shield drainages and Amazon Shield tributaries to the coastal drainages of eastern and southeastern Brazil, including the rio São Francisco basin. Most species have the caudal peduncle oval in cross section. It has been found that Characidium species may interact with P. maculicauda. The small Characidium will follow grazing P. maculicauda, which release particulate matter dislodged from the catfish's foraging.
Gymnotocinclus anosteos is a species of armored catfish (Loricariidae) endemic to Brazil, where it is found in the Tocantinzinho River in the Tocantins River basin. This species grows to a length of 4.4 centimetres (1.7 in) SL.
Gymnotocinclus is a genus of small freshwater catfish in the family Loricariidae, native to the Tocantins River basin in Brazil.
Tatia is a genus of small South American catfishes belonging to Auchenipteridae, the driftwood catfish family.
Gelanoglanis is a genus of fish in the family Auchenipteridae native to South America.
Otocinclus juruenae is a species of armoured catfish endemic to the Juruena river in Mato Grosso, Brazil.
Otothyropsis polyodon is a species of armored catfish found in the tributaries of the Rio Verde which is a tributary to the upper Rio Paraná basin in Mato Grosso do Sul, Brazil. This species reaches a length of 3.7 cm (1.5 in).
Otothyropsis alicula is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Santo Antônio River, a tributary of the Sapucaí River, which is itself a tributary of the Rio Grande and part of Brazil's Paraná River basin. The species reaches 3.6 cm SL and was described in 2014 by Beatriz G. Lippert, Bárbara B. Calegari, and Roberto E. Reis on the basis of morphology and coloration.
Otothyropsis piribebuy is a species of catfish in the family Loricariidae. It is native to South America, where it is known to occur in the Piribebuy River and the Aguaray River, which are part of the Paraguay River basin in Paraguay. It is found in areas with marginal vegetation and reaches 2.9 cm SL. The species is known to be collected for the aquarium trade, where it may be confused with fish of the genus Otocinclus, which are in the same family and are visually similar.
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