Fish Spine Anatomy Diagram - Comparative Illustration of Venomous Species #2275921 (License: Personal Use)

This black-and-white scientific illustration depicts the head and fin anatomy of a stonefish (Steinfisch), highlighting its dorsal and pectoral spines labeled "Stacheln". To the right, three magnified spine cross-sections compare the morphology of spines from Roteufelfisch (red lionfish), Drachenkopf (dragonhead fish), and Steinfisch, revealing differences in shape, serration, and venom groove structure.

Used in marine biology textbooks, educational websites, or venomous marine life safety guides to help identify dangerous fish species by spine morphology; supports user intent to learn about fish envenomation mechanisms or differentiate hazardous species.