Teeth and ganoid scales in polypterus and lepisosteus, the. Polypterus and its species including synonyms in catalog of fishes. The polypterus senegalus is referred to by a number of different common names, and is often confused with eels. Polypterus senegalus polypterus senegalus poisson d. Developmental plasticity and the origin of tetrapods nature. Polypterus senegalus known as the senegal bichir, cuvier bichir or gray bichir size is about 5 inches, feeding on sinking pellets and bloodworms. Senegal polypterus have an airbreathing organ and i love to watch it when it is eating pieces of food just like a snake.
Polypterus senegalus wikipedia, a enciclopedia livre. The primitive aetinopterygian fish polypterus senegalus cuvier inhabits shallow and swampy waters throughout tropical africa, often in conditions of severe oxygen deficiency, and its adaptation to. These are attractive fish with lengthened body, vast head as well as round tail. The first success was that of polypterus senegalus by arnoult in 1964, a species spawned repeatedly since see hartl, 1981. Nile basin and west africa, including gambia, niger, senegal, volta and lake chad basins. Polypterus bichir bichir likes shallow water and will often lie basking fo hours near the surface, but when swimming the fish is very pliant, and can turn and twist like an eel ref. A quick video of my polypterus senegalus aka senegal bichir. Polypterus senegalus senegalus senegal bichir seriously fish. Longevity of polypterus senegalus in captivity can be 34 years and more ref. Polypterus senegalus supporting itself using its pectoral fins. We have the ability to fill large orders for the polypterus bichir species.
We collect these beautiful creatures by hand when you place your order for them. Environmentally induced plasticity in extant animals relates to evolutionary processes. Polypterus endlicherii heckel, 1847 saddled bichir. In august 1962, small specimens of polypterus senegalus cuvier, ranging from 20 to 25 ems. The male makes from the anal fin a sort of cup and the female lays the eggs in this cup ref. Gray bichir polypterus senegalus the free freshwater and. Video images showing the key stages in the spiracular airbreath cycle for p. Senegal bichir are widely distributed across africa, where they can be found living in a variety of slow moving shallow waters including. The eggs are deposited in weeds, where the adult fish guards the eggs and young ref. Wholemount specimens in glycerol after gross staining with alizarin red s. This genus, one of the indigenous fishes of africa, is of economic importance in some parts of the sudan. Identification edit edit source an elongated snakelike prehistoriclooking fish with many small dorsal finlets, a wide head and large mouth. Dinosaur eels are typically polypterus species, also known as bichirs a word for which the correct pronunciation has been lost in the mists of time.
Polypterus senegalus is the most active of all polypterus. The male then spreads the eggs so that they attach, e. Macrogyrodactylus polypteri malberg on polypterus senegalus. They prefer to swallow prey whole, but some specimens are not above mutilating a larger than average fish by ruining the tail end and debilitating it. It is a member of the cladistia, a group possessing lungs, heavy ganoid scales external layer of ganoine, lobelike pectoral appendages, two gular plates visible in the roll movie, particularly in the isolated head, external gills as young, a spiral valve in the intestine and a. Polypterus senegalus albino 2 polypterus senegalus. Polypterus palmas ayres, 1850 marbled bichir, shortfin bichir. Page designed through the cooperative efforts of interagency itis teams.
The colour also varies from yellowish brown to grey, darker in the top, paler in the ventral area. The most common species in the trade is polypterus senegalus, a uniform greypink fish with a whitish underbelly. Polypterus senegalus, the senegal bichir, gray bichir or cuviers bichir, and sometimes called the dinosaur eel a misnomer, as the creature is neither an eel nor a dinosaur also called dinosaur bichir or dragon fish is in the pet trade due to its lungfishlike appearance which was described as more primitive and prehistoric than other. Light micrographs of ganoid scales in polypterus senegalus ac and lepisosteus oculatus dk. An incredibly hardy, nocturnal species with very poor vision, p. It will eat any fish that it can fit in its mouth, but only if it is able to sneak up on it. Polypterus delhezi is native to the congo river basin in africa gosse, 1984. Ground sections cut from polyester resin blocks of nondemineralized ganoid scales. This fish isnt an aggressive fish such as other kind of polys. Generally a peaceful companion to unrelated fish of equal size or greater. Profile of senegal bichir polypterus senegalus with forum. I feed it with granular, vitamin tablets, cow liver and others. Swamp dragons, though, are truly unique fish, and perfect for the aquarist who wants to add a little mystery to his fish tank.
The embryonic and larval development of polypterus senegalus cuvier, 1829. Polypterus is a genua of fishes which is best considered as descendent f the palaeoniscid stock coming from devonian times 400 million years ago. The nile river, lake chad and senegal river are just a few of the main bodies of water this fish can be found in. A polypterus may elect to try and eat any fish up to roughly 3 times the width and four times the length of its own head. Behaviour cannot be found in the fossil record, by using an animal that has a similar morphology we can help predict how those fossilized animals may have moved when they were living. Wild polypterus bichir for sale west african fish for sale. Polypterus senegalus senegalus is mainly insectivorous ref. Albino senegal bichir are selectively bred variants of the common senegal bichir. Pectoral fins are paddlelike and will range in size due to selective breeding.
Information and translations of polypterus in the most comprehensive dictionary definitions resource on the web. If you want to buy a polypterus, i recommend this kind to you. Polypterus congicus, the congo bichir, is a species of bichir with a maximum recorded size of 970 millimetres 38 in. Polypterus retropinnis vaillant, 1899 west african bichir. It is a member of the cladistia, a group possessing lungs, heavy ganoid scales external layer of ganoine, lobelike pectoral appendages, two gular plates visible in the roll movie, particularly in the isolated head, external gills as young, a spiral valve in the intestine. Polypterus senegalus is quite hardy, but it does need an aquarium around 180 litres45 us gallons to do well, plus a filtration system rated at not less than a turnover of 6 times the tank per hour. Ammonia and nitrite levels should be 0, and water chemistry should be soft to moderately hard, without an extreme either way in terms of ph. Feb 24, 20 a quick video of my polypterus senegalus aka senegal bichir. Found in africa, lake albert, rudolph and chad, gambia, niger and senegal. Polypterus delhezi boulenger, 1899 barred bichir polypterus polli j. Polypterus palmas polli is no longer a member of the palmas complex and is now known as just polypterus polli.
Senegal bichir, greygray bichir, dinosaur eel origin. For more multimedia, look at polypterus senegalus on wikimedia commons. Male starts with the balts and is the active partner ref. The lifespan for polypterus senegalus is 12 years or more, depending on how well it is cared for. They are more successful hunters at night, but they will make attempts during the day. Gulf aquatics cameroon is the worlds leading supplier of polypterus bichir. Hosted by the usgs core science analytics and synthesis. Polypterus endlicheri congicus was found to be a closer relative to p. May 31, 2017 dinosaur bichir bichir polypterus senegalus is a freshwater fish, which belongs to the polypteridae household.
This species can be found all throughout africas rivers and lakes. Respiration of air by the primitive fish polypterus senegalus. Polypterus delhezi may be distinguished from other bichirs by the presence of 10 finlets and 78 dark vertical bands. Polypterus senegalus senegalus cuvier, 1829 common names. Polypterus senegalus albino 2 polypterus senegalus fwf odd polypterus senegal alb fish size. The name polypterus is derived from the word polypteron which itself is made from two greek words poly a lot of and pteron wing so polypterus means many wings and probably refers to the many separate dorsal fins of the fish in this family.858 1464 1596 107 924 446 795 4 1412 1388 163 842 10 500 1590 275 402 1324 1065 237 329 1090 406 1375 394 1349 648 397 1255 1433 704 1084 544 944 1410 175 467