Placoid Scale of Ray

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Fishes are sometimes classed, in accordance with the structure of their scale, into Ctenoid, Ganoid, Cycloid, and Placoid. This illustration is Placoid scale of Ray.

Keywords

scales, fish, ray

Galleries

Fish Anatomy

Source

Logan Marshall, Ed. International Self-Pronouncing Reference Library (five vols.) (Philadelphia, PA: International Press, 1911)

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