FIGURE 12 in A story of nasal horns: two new subspecies of Iguana Laurenti, 1768 (Squamata, Iguanidae) in Saint Lucia, St Vincent & the Grenadines, and Grenada (southern Lesser Antilles)

FIGURE 12. Phylogenetic tree. Based on mtDNA of 23 iguanas (21 from this study, 2 from GenBank). Four clades are identified. Iguana delicatissima (AF217783) serves as the outgroup. The monophyly of Lazell's southern Lesser Antilles group, characterised by horns, is described here as two new subspecies Iguana iguana insularis and Iguana iguana sanctaluciae. The horned iguanas from Central America are also considered here as a full species I. rhinolopha. The sister group of I. iguana insularis and Iguana iguana sanctaluciae is I. iguana iguana (based on specimens shown here from French Guiana). This phylogenetic tree shows that I. iguana iguana is present as an invasive alien species in the Grenadines (IGU74) and that there is I. delicatissima mitochondrial DNA in some specimens of I. iguana sanctaluciae. The ML tree with the highest log likelihood is shown. Node supports were indicated by bootstrap values from ML (>70) and posterior probability from BI (>0.95).