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Cephalaspis :: Cephalaspis (n.) A genus of fossil ganoid fishes found in the old red sandstone or Devonian formation. The head is large, and protected by a broad shield-shaped helmet prolonged behind into two lateral points..

Brachioganoidei :: Brachioganoidei (n. pl.) An order of ganoid fishes of which the bichir of Africa is a living example. See Crossopterygii.

Rhomboganoid :: Rhomboganoid (n.) A ganoid fish having rhombic enameled scales; one of the Rhomboganoidei.

Ginglymodi :: Ginglymodi (n.) An order of ganoid fishes, including the modern gar pikes and many allied fossil forms. They have rhombic, ganoid scales, a heterocercal tail, paired fins without an axis, fulcra on the fins, and a bony skeleton, with the vertebrae convex in front and concave behind, forming a ball and socket joint. See Ganoidel..

Bowfin :: Bowfin (n.) A voracious ganoid fish (Amia calva) found in the fresh waters of the United States; the mudfish; -- called also Johnny Grindle, and dogfish..

Polypteroidei :: Polypteroidei (n. pl.) A suborder of existing ganoid fishes having numerous fins along the back. The bichir, or Polypterus, is the type. See Illust. under Crossopterygian..

Pycnodontini :: Pycnodontini (n. pl.) An extinct order of ganoid fishes. They had a compressed body, covered with dermal ribs (pleurolepida) and with enameled rhomboidal scales..

Chondroganoidea :: Chondroganoidea (n.) An order of ganoid fishes, including the sturgeons; -- so called on account of their cartilaginous skeleton..

Selachostomi :: Selachostomi (n. pl.) A division of ganoid fishes which includes the paddlefish, in which the mouth is armed with small teeth..

Ganoine :: Ganoine (n.) A peculiar bony tissue beneath the enamel of a ganoid scale.

Crossopterygii :: Crossopterygii (n. pl.) An order of ganoid fishes including among living species the bichir (Polypterus). See Brachioganoidei.

Hyoganoidei :: Hyoganoidei (n. pl.) A division of ganoid fishes, including the gar pikes and bowfins..

Dinichthys :: Dinichthys (n.) A genus of large extinct Devonian ganoid fishes. In some parts of Ohio remains of the Dinichthys are abundant, indicating animals twenty feet in length..

Placoganoid :: Placoganoid (a.) Pertaining to the Placoganoidei.

Amia :: Amia (n.) A genus of fresh-water ganoid fishes, exclusively confined to North America; called bowfin in Lake Champlain, dogfish in Lake Erie, and mudfish in South Carolina, etc. See Bowfin..

Sturiones :: Sturgeon (n.) Any one of numerous species of large cartilaginous ganoid fishes belonging to Acipenser and allied genera of the family Acipenseridae. They run up rivers to spawn, and are common on the coasts and in the large rivers and lakes of North America, Europe, and Asia. Caviare is prepared from the roe, and isinglass from the air bladder..

Ganoidian :: Ganoidian (a. & n.) Ganoid.

Paddlefish :: Paddlefish (n.) A large ganoid fish (Polyodon spathula) found in the rivers of the Mississippi Valley. It has a long spatula-shaped snout. Called also duck-billed cat, and spoonbill sturgeon..

Paleichthyes :: Paleichthyes (n. pl.) A comprehensive division of fishes which includes the elasmobranchs and ganoids.

Euganoidei :: Euganoidei (n. pl.) A group which includes the bony ganoids, as the gar pikes..

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