Sea Urchin Anatomy: Classic Scientific Illustration #1208014 (License: Personal Use)

This high-detail line engraving depicts a sea urchin in lateral view, emphasizing its spherical test covered with fine pores, tubefeet openings, and densely packed, sharply pointed spines radiating outward. The illustration uses cross-hatching and stippling to convey texture and depth, typical of historical natural history publications. It accurately represents key morphological features such as the apical system and ambulacral zones.

Used in educational contexts like marine biology textbooks, museum exhibits, or online encyclopedias to illustrate echinoderm anatomy; targets users seeking scientific accuracy, historical illustration styles, or classroom teaching resources.