Earthworm Anatomy Diagram - Educational Illustration for Biology Studies #91605 (License: Personal Use)

This vintage-style line illustration meticulously depicts the external morphology of a common earthworm (Lumbricus terrestris), emphasizing its characteristic metamerism, clitellum near the anterior third, and smooth tapering ends. The shading and fine linework convey texture and musculature without color, making it suitable for textbook reproduction or classroom use. It reflects 19th- to early-20th-century biological illustration standards.

Used in educational contexts such as biology textbooks, online learning modules, museum exhibits, or entomology/zoology reference sites; targets users searching for “earthworm diagram,” “annelid anatomy,” or “biology illustration.”