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The clown knifefish, clown featherback fish or spotted knifefish, Chitala ornata, is a nocturnal tropical fish with a long knife-like body. Other family members include the (Chitala chitala), also known as the clown knife fish, Chitala lopis, or the giant featherback, Notopterus notopterus, or the bronze knife fish, and the Xenomystus nigri or the African knife fish. Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ...
Animalia redirects here. ...
Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with...
Orders See text The Actinopterygii are the ray-finned fish. ...
Families Heterotididae Pantopontidae (butterflyfishes) Singidididae (extinct) Osteoglossidae ( arowana) Ostariostomidae (extinct) Notopteridae (featherfin knifes) Gymnarchidae Mormyridae (elephantfishes) Osteoglossiformes (Lat. ...
Genera Chitala Notopterus Papyrocranus Xenomystus See text for species. ...
In biology, binomial nomenclature is the formal method of naming species. ...
John Edward Gray. ...
Leopold I 1831 (MDCCCXXXI) was a common year starting on Saturday (see link for calendar). ...
The tropics are the geographic region of the Earth centered on the equator and limited in latitude by the two tropics: the Tropic of Cancer in the north and the Tropic of Capricorn in the southern hemisphere. ...
Appearance
The clown knifefish is very distinct, normally silvery gray with long knife like body (laterally compressed) and a long anal fin that gives these fish their common name. Mature fish normally have 5-10 (or even more) black spots ringed with white that usually increase in number and size as the fish grows. Juvenile fish have striped bands instead of spots. Their long anal fins are specially made for graceful forward and backward movements. General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Atomic mass 107. ...
A stripe may be one of a pattern of areas created by a family of parallel lines, as on the flag of the United States, also known as the stars and stripes in a candy-stripe pattern, on a diagonal and twisted round a cylinder, as for a candy cane...
Anal can mean: Anus, the external opening of the rectum Anal retentive, a person overly uptight or distressed over ordinarily minor problems Anal sex, anal sexual intercourse This is a disambiguation page, a list of pages that otherwise might share the same title. ...
A fin is a surface used to produce thrust or to steer while traveling in water, air, or other fluid media. ...
The clown knifefish grows to a fairly large size, up to 100 cm and 5 kg in the wild. It has 2 nasal tentacles above their large toothed mouth. In the center of the body there is a flaglike dorsal fin and has no ventral fins. Most clown knifefish are afflicted with cloudy eye color when they age, it is perfectly normal. (adj. ...
Tentacles can refer to the elongated flexible organs that are present in many invertebrates, and sometimes to the hairs of the leaves of insectivorous plants. ...
Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ...
Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ...
Behavior They are nocturnal creatures and usually cruise during the twilight hours. They normally hunt live prey and will try any fish that fits into their mouths. Young clown knifefish usually school near water logs and plants for security, whereas more mature specimens usually become territorial and eventually become loners. These fish can also breath air to survive in stagnant waters and little oxygen. The clown knifefish prefers water around neutral pH and temperature ranging from 75 to 85 F. A nocturnal animal is one that sleeps during the day and is active at night - the opposite of the human (diurnal) schedule. ...
Twilight in Denmark, just after sunset Twilight in the midwestern US featuring Venus as a brilliant evening star and the crescent moon Finland - Lapland at midnight in July Twilight in Acapulco with Long time Exposure Twilight is the time before sunrise or after sunset when sunlight scattered in the upper...
Students in Rome, Italy. ...
In biology, specimen is an individual animal or a plant or a microorganism that is used as a representative to study the properties of the whole population of that species. ...
General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Standard atomic weight 15. ...
The correct title of this article is . ...
Location Most knifefish species come from Southeast Asia, specifically Thailand, Borneo, Malaysia, India, and Sumatra. Location of Southeast Asia Southeast Asia is a subregion of Asia. ...
Borneo is the third largest island in the world. ...
Sumatra (also spelled Sumatera) is the sixth largest island in the world (approximately 470,000 km²) and is the largest island entirely in Indonesia (two larger islands, Borneo and New Guinea, are partially in Indonesia). ...
These fish usually are found in lakes, swamps, and river backwaters. They prefer still waters and can survive with low oxygen.
In the aquarium Clown knifefish are sold as exotic fishes in pet stores, but they grow much too large for the average home aquarium. It is necessary to keep in mind that these fish will grow fast and very large even in captivity (about 50 cm), so should be kept in aquariums of at least 500 liters in order to reach their full growth potential. It is not advised to have tankmates small enough to be considered food.
These fish enjoy periods of retreat, so aquariums which have caves, plants, or other hiding places are preferred. They are jumpers, so the lid should be kept tightly closed (with weights - larger specimens may knock the lid out). Dim lighting may help lessen jumping issues. For the first few days, clown knifefish are shy and prone to hiding. As they grow larger they tend to be quite the opposite.
These fish have their own personalities, attaching themselves to their handlers to the point of being "hand-held" when moving or doing some maintenance. Handler may refer to: Handler, one who handles something: Handler, a manager or controller of an animal Handler, a manager or controller of a sports player such as a boxer Handler, a manager or controller of a spy Baggage handler, a person who loads and unloads baggage and other cargo...
Feeding Clown knifefish are hearty eaters, one of the reasons people like them as pets. They are predatory fish and will take live foods such as feeder goldfish, guppies, ghost shrimp and blackworms. With time they can be adapted to foods such as beefheart and will sometimes learn to accept commercial food pellets. They are mostly nocturnal, thus prefer feeding when the lights are off. Trinomial name Carassius auratus auratus (Linnaeus, 1758) For the baked snack crackers, please see Goldfish (snack). ...
For other uses of this word, see Guppy (disambiguation). ...
Don Van Vliet (born Don Glen Vliet on January 15, 1941 in Glendale, California) is a musician and visual artist, best known by the pseudonym Captain Beefheart. ...
A nocturnal animal is one that sleeps during the day and is active at night - the opposite of the human (diurnal) schedule. ...
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