Linguatula serrata Tongue Worm in Human Eye, Austria
Figure 2. Rectangular cladogram based on 18S rRNA gene sequences of 6 pentastomid species. The tree was rooted with 4 branchiura sequences as an outgroup. The numbers at nodes represent bootstrap values based on 100 replicates (neighbor joining/maximum likelihood/maximum parsimony). Both subgroups of the Pentastomida, the Cephalobaenida (Reighardia sternae, Hispania vulturis, and Raillietiella spp.) and the Porocephalidae (Porocephalus crotali and Armillifer agkistrodontis) are well supported. The choice of outgroup had no effect on tree topology but did in some cases reduce bootstrap values.