Above, two hogs, an insect, a sea horse, a tanager bird, and a large tapeworm; below, an ibis, a tapir, a teredo (ship-worm), two tortoises and a mollusc. Engraving by Heath.

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Above, two hogs, an insect, a sea horse, a tanager bird, and a large tapeworm; below, an ibis, a tapir, a teredo (ship-worm), two tortoises and a mollusc. Engraving by Heath. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.