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Bony fish have jaws and skeletons made of bone rather than cartilage. About 90% of the world's fish species are bony fish. Bony fish also have hard, bony plates called operculum which help them respire and protect their gills, and they often possess a swim bladder which they use for better control of their buoyancy.
The olfactory lobes are very large in fish that hunt primarily by smell, such as hagfish, sharks, and catfish. Behind the olfactory lobes is the two-lobed telencephalon, the structural equivalent to the cerebrum in higher vertebrates. In fish the telencephalon is concerned mostly with olfaction. [59] Together these structures form the forebrain.
This fish can range up to 1.5 m (4.9 ft) and weigh 7 kg (15 lb). [77] Seahorses and allies (Syngnathiformes) The largest of this diverse order is the red cornetfish (Fistularia petimba), a long, thin species found in all tropical oceans. This fish can reach a length of 2 m (6.6 ft) and a weight of 4.65 kg (10.3 lb). [77]
Osteichthyes (/ ˌ ɒ s t iː ˈ ɪ k θ iː z / ost-ee-IK-theez; from Ancient Greek ὀστέον (ostéon) ' bone ' and ἰχθύς (ikhthús) ' fish '), [2] also known as osteichthyans or commonly referred to as the bony fish, is a diverse clade of vertebrate animals that have endoskeletons primarily composed of bone tissue.
The freshwater drum is also called Russell fish, shepherd's pie, gray bass, [7] Gasper goo, Gaspergou, [8] gou, [8] grunt, grunter, [7] grinder, gooble gobble, and croaker. It is commonly known as sheephead and sunfish in parts of Canada, [ 9 ] and the United States.
Lingcod typically has a large head and mouth where the upper jaw extends posteriorly past the eyes. [7] They have 18 large and sharp teeth that are canine-like. [7] This body of a lingcod resembles a fusiform body plan, indicating their primary mode of movement is quick, short, bursts. The head of a lingcod is unscaled and has a cirrus above ...
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Elasmobranchii is one of the two subclasses of cartilaginous fish in the class Chondrichthyes, the other being Holocephali . Members of the elasmobranchii subclass have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales. The teeth are in several series; the ...