Florida Keys populations of <i>Cerion</i> sampled for this study.

<p>The numbers of individuals sequenced from each population for the mitochondrial cytochrome <i>c</i> oxidase 1 and 16S rDNA genes, the numbers of different haplotypes within each population for each of the partial gene sequences, as well as for the concatenated sequences are provided. Samples from the type localities of named taxa are in bold. GenBank accession numbers for the various haplotypes of <i>Cerion incanum</i>, <i>C</i>. <i>cassablancae</i> and their hybrids are provided in Appendix 1.