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External Morphology Basics

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Presentation on theme: "External Morphology Basics"— Presentation transcript:

1 External Morphology Basics
Caudal Peduncle Operculum Lateral Line

2

3 Body Shape Fusiform, Terete, Cyllindrical Compressiform, Compressed
Depressiform, Depressed Anguilliform, Eel-like Figure from Biology of Fishes, Bond

4 Mouth Position Inferior Subterminal Superior Terminal
Figure from Biology of Fishes, Bond Superior Terminal

5 Caudal Fin

6 Caudal Fin Truncate Emarginate Rounded Forked Lunate

7 Fin Placement Pectoral fins of more primitive fishes are generally lower on the body and have a more horizontal base. More primitive fishes have abdominal pelvic fins. More advanced fishes have thoracic or jugular pelvic fins. Figure from Biology of Fishes, Bond

8 Scales PLACOID GANOID CYCLOID CTENOID

9 Scales?

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