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Chondropterygii :: Chondropterygii (n. pl.) A group of fishes, characterized by cartilaginous fins and skeleton. It includes both ganoids (sturgeons, etc.) and selachians (sharks), but is now often restricted to the latter..

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

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..

Buckler :: Buckler (n.) One of the large, bony, external plates found on many ganoid fishes..

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

Placoganoidei :: Placoganoidei (n. pl.) A division of ganoid fishes including those that have large external bony plates and a cartilaginous skeleton.

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

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..

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

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..

Lepidosiren :: Lepidosiren (n.) An eel-shaped ganoid fish of the order Dipnoi, having both gills and lungs. It inhabits the rivers of South America. The name is also applied to a related African species (Protopterus annectens). The lepidosirens grow to a length of from four to six feet. Called also doko..

Bichir :: Bichir (n.) A remarkable ganoid fish (Polypterus bichir) found in the Nile and other African rivers. See Brachioganoidei.

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

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

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

Brachioganoid :: Brachioganoid (n.) One of the Brachioganoidei.

Teleostomi :: Teleostomi (n. pl.) An extensive division of fishes including the ordinary fishes (Teleostei) and the ganoids.

Holostei :: Holostei (n. pl.) An extensive division of ganoids, including the gar pike, bowfin, etc.; the bony ganoids. See Illustration in Appendix..

Cycloganoidei :: Cycloganoidei (n. pl.) An order of ganoid fishes, having cycloid scales. The bowfin (Amia calva) is a living example..

Cycloganoid :: Cycloganoid (n.) One of the Cycloganoidei.

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