Figures & data
Table I. Taxa, localities, and GenBank accession numbers for the COX1 sequences/catalog number (Colección Nacional de Helmintos [CNHE], UNAM, México) of leeches of Helobdella spp. used in the neighbor-joining analyses.
Figure 1. Neighbor-joining tree based on the Kimura two-parameter substitution model of the COX1 locus of representative species of Helobdella showing the “stagnalis” and “triserialis” series. Numbers next to straight lines indicate average genetic distance within samples of a particular cluster. Number next to arrows indicates average genetic distance of pairwise comparisons between members of the two different clusters (H. europea and H. socimulcensis). Asterisks indicate specimens collected in the type locality. Numbers next to vertical lines indicate average genetic distances.
