Cycloid Fish Scale Nikon's MicroscopyU

The principal purpose of scales is to give fish external protection, but not all fish species have them. However, those that do may be covered in scales of various shapes, sizes, and types. The primary categories of fish scales are placoid, cosmoid, ganoid, cycloid and ctenoid scales.

Molecular Expressions Microscopy Primer: Specialized Microscopy

Cycloid scales – Fishionary

What is the Difference Between Placoid and Cycloid Scales

Scale characteristics shown for a cycloid scale of Seriola

Mic-UK: Fishes and scales

Mic-UK: Fishes and scales

Nikon Microscope Eclipse E400 Multihead Teaching System for Pathology - NC, SC, VA

Structure of a fish scale hi-res stock photography and images - Alamy

What is the Difference Between Placoid and Cycloid Scales

Cycloid scale

Cycloid scale