Arowana

From Wikipedia

Arowana are Fresh water (also freshwater or fresh-water) is water that contains only minimal quantities of dissolved salts, especially sodium chloride, thus distinguishing it from sea water or brackish water. All freshwater ultimately comes from precipitation of atmospheric water vapor, reaching inland lakes, rivers, and groundwater bodies directly, or after melting... freshwater Subclasses Actinopterygii Sarcopterygii Osteichthyes are the bony fish, a group paraphyletic to the land vertebrates, which are sometimes included. Most belong to the Actinopterygii. The others are called lobe-finned fish, and include lungfish and coelacanths. They are traditionally treated as a class of vertebrates, with subclasses Actinopterygii and Sarcopterygii... bony fish of the family Osteoglossidae, sometimes known as "Bony tongues".

Classification

They are primitive throwbacks from the The Tertiary period is one of the major divisions of the geologic timescale, from the end of the Cretaceous period about 64 million years ago to the start of the Quaternary period about 1.6 million years ago. The Tertiary includes five geologic epochs -- the Paleocene, Eocene, Oligocene, Miocene and... lower Tertiary and are placed in the Orders See text The Actinopterygii are the ray-finned fish. They are the dominant group of vertebrates, with over 27,000 species ubiquitous throughout fresh water and marine environments. They are traditionally treated as a subclass of the Osteichthyes, or bony fish, but as that group is paraphyletic they may... actinopterygiid order Families Heterotididae Pantopontidae (butterflyfishes) Singidididae (extinct) Osteoglossidae ( arowana) Ostariostomidae (extinct) Notopteridae (featherfin knifes) Gymnarchidae Mormyridae (elephantfishes) Osteoglossiformes (Lat. bony tongues) is a relatively primitve order of ray-finned fish. Members of the order are notable for having toothed or bony tongues, and for having the forward part of the gastrointestinal... Osteoglossiformes. Seven described In biology, a species is a kind of organism. Loosely speaking, a species is a related group of organisms that share a more or less distinctive form and are capable of interbreeding. As defined by Ernst Mayr, species are groups of actually or potentially interbreeding natural populations which are reproductively... species remain: three from South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. South America is situated between the Pacific Ocean and the Atlantic Ocean. It became attached to North America only recently, geologically speaking, with the formation of the Isthmus of Panama... South America, one from World map showing location of Africa A satellite composite image of Africa Africa is the worlds second-largest continent in both area and population, after Eurasia. At about 30,244,050 km2 (11,677,240 mi2) including its adjacent islands, it covers 20.3 percent of the total land... Africa and the remaining three from Australia, officially the Commonwealth of Australia, is the sixth-largest country in the world, the only one to occupy an entire continent, and the largest in the region of Australasia/ Oceania. It also includes a number of secondary islands, the largest of which is Tasmania, an Australian State. Australia is... Australia.

Habits

Most are entirely carnivorous, often being specialized surface feeders. They are excellent jumpers and it has been reported that Osteoglossum species have been seen leaping more than 6 feet from the water surface to pick off monkeys from overhanging branches in South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. South America is situated between the Pacific Ocean and the Atlantic Ocean. It became attached to North America only recently, geologically speaking, with the formation of the Isthmus of Panama... South America. All species are large, and the Binomial name Arapaima gigas , The Arapaima gigas is the worlds largest freshwater fish. It can reach lengths of up to 4.5m and weigh up to 200 kg. Unfortunately it is one of the most sought after fish species in South America, often captured by spearing for exportation, so... Arapaima is a contender for the world's largest fish.

Species

The family contains two Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. Modern classification has its roots in the system of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have been revised since Linnaeus to improve consistency with the Darwinian... subfamilies, Heterotidinae and Osteoglossinae, with all but two of the seven extant species being members of the latter.

• Subfamily Heterotidinae
  • Genus Arapaima
    • Binomial name Arapaima gigas , The Arapaima gigas is the worlds largest freshwater fish. It can reach lengths of up to 4.5m and weigh up to 200 kg. Unfortunately it is one of the most sought after fish species in South America, often captured by spearing for exportation, so... Arapaima gigas (Cuvier, 1829) - the "Pirarucu" or Arapaima
  • Genus Heterotis
    • Heterotis niloticus (Cuvier, 1829) - the "African Arowana"
• Subfamily Osteoglossinae
  • Genus Osteoglossum Cuvier, 1829
    • Osteoglossum bicirrhosum (Cuvier, 1829) - the "Silver Arowana"
    • Osteoglossum ferreirai Kanazawa, 1966 - the "Black Arowana"
  • Genus Scleropages
    • Binomial name Schleropages formosus ( Schlegel & Müller ), 1844 The Asian Bonytongue or Asian Arowana (Scleropages formosus) is a species of freshwater fish from Southeast Asia commonly known as the Dragon Fish by fish enthusiasts (though this name is also used of many other unrelated species of fish). They are... Scleropages formosus (Schlegel & Müller, 1844)- the "Asian Arowana" or "Green Arowana"
    • Binomial name Schleropages jardini , Australian Arowana (Sceleropages jardini) are a species of freshwater fish from Australia. They can grow up to two feet long and live up to 10 years. They are also known as dragonfish for their resemblances. Categories: Stub | Bony-tongued fishes ... Scleropages jardini (Saville-Kent, 1892)- the "Silver Barramundi" or "Northern Barramundi"
    • Scleropages leichardti Günther, 1864 - the "Spotted Barramundi"