Osteichthyes (/ ˌ ɒ s t i ˈ ɪ k θ i iː z /), popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue, as opposed to cartilage.The vast majority of fish are members of Osteichthyes, which is an extremely diverse and abundant group consisting of 45 orders, and over 435 families and 28,000 species.
Bony fishes share several distinguishing features: a skeleton of bone, scales, paired fins, one pair of gill openings, jaws, and paired nostrils. Osteichthyes includes the largest number of living species of all scientific classes of vertebrates, more than 28,000 species. Osteichthyes account for about 96% of all fish species.
Most of the world's fish species are categorized into two types: bony fish and cartilaginous fish.In simple terms, a bony fish (Osteichthyes) is one whose skeleton is made of bone, while a cartilaginous fish (Chondrichthyes) has a skeleton made of soft, flexible cartilage.A third type of fish, including eels and hagfish, is the group known as Agnatha, or jawless fish.
Bony fish: Bony fish, any member of the superclass Osteichthyes, a group made up of the classes Sarcopterygii (lobe-finned fishes) and Actinopterygii (ray-finned fishes) in the subphylum Vertebrata, including the great majority of living fishes and virtually all the world’s sport and commercial fishes. The
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Bony fish are the most common type of fish not just around Britain and Ireland but around the world – of the 28,000 species of fish found worldwide approximately 27,000 are classed as bony fish. Bony fish are sub-divided into two categories: ray finned fish and lobe finned fish.
Bony fish are again classified into ray finned and lobe finned fish. Ray finned fish have thin, flexible skeleton rays. Lobe finned fish have muscular fins supported by bones. Bony fish fertilizes either internally or externally. Two types of eggs are laid by the bony fish. They are the eggs that float and the eggs that sink.
BONY FISH SPECIES. The following bony fishes are found within the coral cap region of the sanctuary (0-130 ft, 0-40m deep). Common names are listed, if known. Click on a link below to go directly to a specific group of fish, or scroll down the page to see them all. Click on any photo to see a larger image.
The classification of the 28,000 living fish species varies from one to the next; however, all are part of the Animal Kingdom, the phylum Chordata and the subphylum Vertebrata. Within this subphylum, four different classes contain fish, including the Myxini, Cephalspidmomorphi, the Chondrichthyes and the Osteichthyes.
Actinopterygii (/ ˌ æ k t ɪ ˌ n ɒ p t ə ˈ r ɪ dʒ i aɪ /), or the ray-finned fishes, constitute a class or subclass of the bony fishes.. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines ("rays"), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays ...