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Catfish (or catfishes; order Siluriformes / s ɪ ˈ lj ʊər ɪ f ɔːr m iː z / or Nematognathi) are a diverse group of ray-finned fish.Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to ...
External anatomy of a bony fish (Hector's lanternfish): 1. operculum (gill cover), 2. lateral line, 3. dorsal fin, 4. adipose fin, 5. caudal peduncle, 6. caudal fin, 7. anal fin, 8. photophores, 9. pelvic fins (paired), 10. pectoral fins (paired) Internal anatomy of a bony fish. Fish anatomy is the study of the form or morphology of fish. It ...
Synodontis membranaceus, known as the moustache catfish, [2] is a species of upside-down catfish that is native to northern Africa. [3] It was first described by French naturalist Geoffroy Saint-Hilaire in 1809 as Pimelodus membranaceus, from specimens obtained in the Nile River. [2] The species name membranaceus refers to membranes present on ...
Fish retinas generally have both rod cells and cone cells (for scotopic and photopic vision), and most species have colour vision. Some fish can see ultraviolet and some are sensitive to polarised light. Among jawless fishes, the lamprey [1] has well-developed eyes, while the hagfish has only primitive eyespots. [2]
Mochokidae. Genus: Synodontis. Species: S. nigriventris. Binomial name. Synodontis nigriventris. David, 1936. Synodontis nigriventris, the blotched upside-down catfish, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo.
The flathead catfish grows to a length of 155 cm (61 in) [8] and may weigh up to 55.79 kg (123.0 lb), [9] making it the second-largest North American catfish (after the blue catfish, Ictalurus furcatus). [9] More commonly, adult length is about 15–45 inches (38–114 cm). [6] Its maximum recorded lifespan is 28 years. [10]
Barbel (anatomy) Koi carp have two pairs of barbels, the second pair being quite small. In fish anatomy and turtle anatomy, a barbel is a slender, whiskerlike sensory organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark ...
Trichomycteridae. Trichomycteridae is a family of catfishes commonly known as pencil catfishes or parasitic catfishes. This family includes the candiru fish (Vandellia cirrhosa), feared by some people for its alleged habit of entering into the urethra of humans. They are one of the few parasitic chordates.