<p><strong>(B)</strong> A dorsal fin drawing of a soldierfish’s second dorsal fin, showing fin spines (unbranched) and rays (branched and softer than spines).</p>

(B) A dorsal fin drawing of a soldierfish’s second dorsal fin, showing fin spines (unbranched) and rays (branched and softer than spines).

Image from Living Ocean, CRDG, University of Hawaii at Manoa