Summary of some variations in the morphology of the lungs and pulmonary artery types in selected snake taxa (based on our own observations and Ref. [12]).

<p>*PA = Pulmonary Artery.</p><p>Summary of some variations in the morphology of the lungs and pulmonary artery types in selected snake taxa (based on our own observations and Ref. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0116416#pone.0116416-Wallach1" target="_blank">[12]</a>).