D. Jacob Christian Schäffers Abhandlungen von Insecten, Regensburg, Verlegts Johann Leopold Montag, 1764-1779, insects, parasites, arthropods, lifecycle, holometabolism, insect anatomy, green hydra, hydra viridissima, grüner Süßwasserpolyp, The illustration showcases a detailed depiction of various types of worms and their anatomical structures. In the upper section, several elongated worms are shown anchored in the soil, with a focus on their segmented bodies and distinctive features, including small bristles. The lower section features a coiled, serpentine worm, emphasizing its curvature and intricate patterns. Accompanying the worms are numerical labels indicating specific figures, highlighting different aspects of their morphology. Above, the depiction includes additional organisms, such as microscopic forms, suggesting a broader study of soil-dwelling creatures and their environments. Overall, the illustration serves as a scientific representation of worm anatomy and their ecologi