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Marine Fish Invertebrates Corals Macroalgae

         

Marine Fish Anatomy:

The following illustration of a Ocellaris Clownfish (Amphiprion ocellaris) shows some of the common external features of fish.
Spiny Dorsal Fin Soft Dorsal Fin Fish Scales Caudal Fin (Tail) The fish's Nostrils Fish Gills The fish's Eyes The fish's Mouth The fish's Lateral Line Anal Fins The fish's Vent Pelvic Fins Pectorial Fin The Caudal Peduncle
External Anatomy


All fish are animals that are cold-blooded, have fins and a backbone. The majority of fish have scales and breathe with gills. There are over 22,000 species of fish that began to evolve around 480 million years ago.


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