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Description and taxonomy. Kryptopterus vitreolus is a small, transparent -bodied, freshwater-dwelling catfish with two long and sensory barbels. Standard lengths for mature fish may range up to 8 cm (3.1 in), but usually only reach around 6.5 cm (2.6 in) in total length. [1] Their bodies are transparent because, like all catfish, they lack scales.
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 ...
Fish anatomy. Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. [1] In practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or ...
Kryptopterus swimming in captivity. Kryptopterus is a genus of catfishes belonging to the family Siluridae. They are found in freshwater throughout Southeast Asia. The scientific name comes from Ancient Greek kryptós (κρυπτός, "hidden") + ptéryx (πτέρυξ, "fin"). It refers to the reduced or even entirely absent dorsal fin of these ...
K. bicirrhis reaches a significantly larger size, up to 15 cm (5.9 in) standard length, [6] and most of its body is not clearly transparent (only obviously transparent around the head). [2] [3] [4] The body of K. bicirrhis is mostly opaque and light greyish. [2] [3] [4] When struck by light, it has an iridescence, and it turns milky white as it ...
Close-up of fish melanophores. Fish coloration is produced through specialized cells called chromatophores. The dermal chromatophore is a basic color unit in amphibians, reptiles, and fish which has three cell layers: "the xanthophore (contains carotenoid and pteridine pigments), the iridophore (reflects color structurally), and the melanophore (contains melanin)". [5]
Arius manilensis Valenciennes, 1840. Pseudarius philippinus Sauvage, 1880. Arius manillensis is a species of marine catfish endemic to the island of Luzon, Philippines. It is commonly known as the sea catfish, Manila sea catfish or kanduli. It is fished commercially. [1][4]
Panaque bathyphilus is an Amazonian species of armoured catfish from the family Loricariidae. [1] The holotype of the species was collected in the Solimões River, upstream of its confluence with the Purus River. [1] This species has been known in the aquarium trade, at least since 1992, [2] as papa panaque or under the L-number code L090.