Origin of ctenoid
Examples from the Web for ctenoid
Historical Examples of ctenoid
The distinctions between cycloid and ctenoid scales, between placoid and ganoid fishes, are vague, and can hardly be maintained.
Louis Agassiz distinguished four kinds of scales—placoid, ganoid, cycloid and ctenoid.Zoology: The Science of Animal Life
There are two principal types of Teleostean scales, the cycloid and ctenoid.The Vertebrate Skeleton
Sidney H. Reynolds
Ctenoid scales have a comb-edge of fine prickles or cilia; cycloid scales have the edges smooth.
In general, prickly points on the skin are modifications of ctenoid scales.