| Auchenipterichthys | |
|---|---|
 | |
| Auchenipterichthys sp | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Auchenipteridae |
| Subfamily: | Auchenipterinae |
| Genus: | Auchenipterichthys Bleeker, 1862 |
| Type species | |
| Auchenipterus thoracatus Kner, 1858 | |
Auchenipterichthys is a genus of driftwood catfishes found in South America.
Auchenipterichthys was first described by Pieter Bleeker in 1862, who designated A. thoracatus (originally described by Kner in 1857 as Auchenipterus thoracatus) as the type species. [1] There are no derived states that is unique to this genus; however, there is no evidence that has been advanced to indicate that this genus is not monophyletic. [1]
There are currently four described species in this genus: [2]
The eyes of these catfish are large and can be seen from both above and below the fish. The anal fin has a long base and at least 18 branched fin rays. The side of the body is decorated with vertical rows of spots above the lateral line. The adipose fin is present. [1]
The lateral line has an irregular zigzag pattern. The head is flattened anteriorly with a terminal mouth. There are three pairs of thread-like barbels, one pair maxillary and two pairs mandibular. The dorsal fin and pectoral fins have large spines; the dorsal fin spine has a lower degree of serration than the pectoral fin spines, which is always serrated strongly on the entire length of both margins. [1]
Based on similarities, the species fall into two groups. One group consists of A. coracoideus and A. thoracatus which have a coracoid covered by a thin layer of integument (allowing the coracoid to be seen from below) and an obliquely truncated caudal fin. The other includes A. longimanus and A. punctatus which has a thick layer of skin covering the coracoid and an emarginate or symmetrical caudal fin. [1] A. coracoideus typically has 25 or fewer branched anal fin rays, while A. thoracatus typically has 26 or more branched anal-fin rays. A. punctatus has a body with variably sized dark spots scattered over the body and the fins, while A. longimanus does not. [1]
Species of Auchenipterichthys are sexually dimorphic. Breeding males of A. coracoideus have an elongated dorsal fin spine. [1] In A. longimanus and A. thoracatus, serrae on the end of the dorsal fin spine are proportionally longer in breeding males than in juveniles and females. [1] Also, females have an enlarged urogenital opening. Males have their urogenital opening located at the end of a tube bound by integument to the anterior margin of the anal fin. [1] The males use their modified anal fin as a means of internal insemination; the female can later lay the eggs in isolation. [3]
Auchenipterichthys species are insectivores. [3] A. longimanus has been reported to feed primarily on terrestrial invertebrates. [1] There is also evidence that A. longimanus is involved in seed dispersal. [4] Auchenipterichthys species are also capable of producing sound. [5]
The stream catfishes comprise the family Akysidae of catfishes.
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes.
Callichthys serralabium is a tropical freshwater fish belonging to the Callichthyinae sub-family of the family Callichthyidae.
Cetopsidium is a genus of catfishes of the family Cetopsidae.
Paracetopsis is a genus of whale catfishes found in tropical South America.
Denticetopsis is a genus of catfishes of the family Cetopsidae.
Breitensteinia is a genus of catfishes of the family Akysidae. It includes three species.
Pseudolithoxus is a genus of suckermouth armored catfishes with five described species from the basins of the Orinoco, Casiquiare and upper Rio Negro in Venezuela. Additionally, a possibly undescribed species is known from the Trombetas and Nhamundá rivers in Brazil.
Cetopsis is a genus of catfishes of the family Cetopsidae.
Synodontis nigrita, known as the false upside down catfish, is a species of upside-down catfish that occurs widely in northern Africa. It was first described by French zoologist Achille Valenciennes in 1840. The type specimen is in the Muséum National d' Histoire Naturelle de Paris.
The Lake Victoria squeaker is a species of upside-down catfish that is native to Kenya, Burundi, Tanzania and Uganda where it is found in Lakes Kioga and Victoria and the Victorian Nile in the lower Kagera River and the Malagarasi River drainage. It was first described by British-Belgian zoologist George Albert Boulenger in 1906, from specimens collected in the Lake Victoria at Buganga, Uganda and Entebbe, Uganda by Mr. E. Degen. The species name victoriae is derived from the location where the species was originally discovered, Lake Victoria.
The spotted drum or spotted ribbonfish, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the western Atlantic Ocean.
Entomocorus is a genus of catfishes of the family Auchenipteridae.
Synodontis caudovittatus, known as the white-finned synodontis, is a species of upside-down catfish that is native to the Nile basin of Ethiopia, South Sudan, and Sudan. It was first described by British-Belgian zoologist George Albert Boulenger in 1901, from specimens collected in the White Nile, at the mouth of Lake No in South Sudan. The species name caudovittatus comes from the Latin word cauda, meaning "tail", and the Latin word vitta, meaning "stripe" and refers to the coloration of the tailfin.
Synodontis clarias, known as the red tailed synodontis, or the mandi, is a species of upside-down catfish that occurs widely in the waters of northern Africa. It was first described by Swedish zoologist Carl Linnaeus in 1758 as Silurus clarias. The original specimens were obtained in Egypt, near Cairo. The meaning of the species name clarias is not certain, but may possibly have been used to mean "bright" or "clear".
Synodontis multimaculatus, known as the dotted synodontis, is a species of upside-down catfish that is native to the Democratic Republic of the Congo where it is found in the Ubangi River. It was first described by British-Belgian zoologist George Albert Boulenger in 1902, from a specimen collected in the Ubangi River in Mobayi-Mbongo, the Democratic Republic of the Congo. The species name multimaculatus is derived from the word multi, meaning many, and the Latin word maculatus, meaning spots, referring to the many spots on the fish.
Synodontis robbianus, known as the russet synodontis, is a species of upside-down catfish that is native to Nigeria where it is found in the Cross and lower Niger Rivers. It was first described by John Alexander Smith in 1875, from specimens collected in the Calabar River, Nigeria. The species name robbianus is named after Rev. Alexander Robb, a Scottish missionary, who collected the original species samples.
Synodontis soloni, known as the scissortail synodontis, is a species of upside-down catfish that is endemic to the Democratic Republic of the Congo where it is found in the Ubangi River and the rapids just below Stanley Pool. It was first described by British-Belgian zoologist George Albert Boulenger in 1899, from the Congo River in what is now the Democratic Republic of the Congo. The species name soloni is a patronym and in memory of Alexandre Solon, who assisted with the collection of fish.
Synodontis tanganyicae is a species of upside-down catfish endemic to the Democratic Republic of the Congo, Zambia, and Tanzania, where it is only known from Lake Tanganyika. It was first described by Russian-American ichthyologist Nikolai Andreyevich Borodin in 1936, from specimens collected at Kasaga, in what is now the Democratic Republic of the Congo. The species name tanganyicae comes from the habitat of the species, Lake Tanganyika.
The luminous hake is a West Atlantic member of the Merluccidae family. It is the only member of its genus.