Three Spines on the Anal Fin of a Bony Fish
“A fin-spine; one of the unjointed and unbranched sharp bony rays of the fins, such as those the presence of which gives name to the acanthopterygian fishes; a spinous fin-ray, as distinguished for a soft ray.”
Illustration of the anal fin of the acanthopterygian fish.
Keywordsray, spinous, fins, rays, Bony fish, Fin, Fin Ray, anal fin, acanthopterygian, soft ray, bony rays
William Dwight Whitney, PhD, LLD The Century Dictionary: An Encyclopedic Lexicon of the English Language (New York, NY: The Century Co., 1895) 5835