<p><strong>Fig. 3.35.</strong>&nbsp;(<strong>B</strong>) A swimming polychaete worm (<em>Tomopteris</em> sp.; an invertebrate animal in the phylum Annelida)</p>

Fig. 3.35. (B) A swimming polychaete worm (Tomopteris sp.; an invertebrate animal in the phylum Annelida)

Image courtesy of Uwe Kils, Wikimedia Commons