Mitochondrial gene orders of “saccopharyngiform” fishes.

<p>Highly similar gene orders are present in <i>Neocyema</i>, <i>Saccopharynx</i> and <i>Eurypharynx</i> compared to <i>Cyema</i> and the highly rearranged <i>Monognathus</i>, and these orders all differ from the more typical gene orders of the Serrivomeridae, Nemichthyidae, and Anguillidae and other vertebrates.