New Jersey Freshwater Fish Identification

Fish Structure, Basic Exterior Anatomy

And Commonly Used Terms

Paired fins are the pectoral and pelvic fins collectively. Median fins are the dorsal, caudal and anal fins collectively.

Commonly Used Terms

Cycloid scales: Scales that are smooth at the rear or exposed end.

Ganoid scales: Type of scales covered with hard enamel.

Keel: A shelflike bony or fleshy ridge.

Papillae: Small projections of connective tissue.

Tubercles: Small, hard, white protruberances on the skin; usually seasonal in occurrence.

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By Joe M. Cianci. See main page for list of sources. Send E mail to me at joecianci@comcast.net Comments welcome!

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04/16/99