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Osteichthyes

Osteichthyes. Osteichthyes. Means fish with bony skeletons There are over 20,000 species of bony fish. Where Do Most Fish Live?. Most fish live in the epipelagic zone. Types of Fins. Tail Fin (CAUDAL FIN) Paired Fins (PECTORAL and PELVIC FINS) Medial Fins (DORSAL and ANAL FINS).

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Biology 1 Chapters 39-41

Biology 1 Chapters 39-41. Fish, Amphibians, and Reptiles. Do Now . What are the 4 characteristics that all chordates have in common? Dorsal nerve cord Notochord Pharyngeal Pouches Post-Anal tail Crash Course: Chordates. Vertebrates.

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Subphylum: Vertebrata A jawless group, the Agnathans ,

Subphylum: Vertebrata A jawless group, the Agnathans , and a group that developed jaws, the Gnathostomatans . The modern representatives of the Agnathans are the hagfish and the lampreys. The cartilaginous fishes, Chondrichthyes , include the sharks, skates and rays.

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Osteichthyes

Biology 1 Chapters 39-41

Subphylum: Vertebrata A jawless group, the Agnathans ,