<p><span style="font-size: 13.008px;"><strong>Fig. 3.56.5.</strong> Gastropod shell with apex up and aperture facing the observer. Note the apertures that open to (<strong>A</strong>) the left and <strong>(B</strong>) the right.</span></p>

Fig. 3.56.5. Gastropod shell with apex up and aperture facing the observer. Note the apertures that open to (A) the left and (B) the right.

Image courtesy of P.H. Nyst, adapted from Wikimedia Commons