Chondrichthyes- Carcharodon Carcharias 

The organisms from the Class Chondrichthyes have paired nostrils.  Their skeleton is completely cartilaginous with no endoskeletal bone.  The Chondrichthyes have no swim bladder.  The scales on the organisms are dermal placoid when present.  The gill arches are internal to gills.  Chondrichthyes are freshwater and marine species.

Examples of organisms found in the Class Chondrichthyes include cartilaginous fishes.

Chondrichthyes- Denticeps clupeoides 

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  3. Major divisions of life. (1999). Retrieved from 

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