Table 1.
Species sampled and sequenced in this study, with their sampling location and coordinates.
Fig 1.
Detail of the phylogenetic tree obtained by Bayesian phylogenetic analysis of the concatenated sequence of molecular markers COI–16S-tRNAs–ND1–28S (see full tree in S2 File).
Allolobophora (Gatesona) representatives are shaded in blue and Helodrilus (Acystodrilus) representatives are shaded in green. Representatives of the main Lumbricidae genera were collapsed and are shown in boxes. Posterior probability support values are shown besides the corresponding nodes.
Table 2.
Uncorrected average pairwise genetic (UAPG) distances between species of the genera Avelona, Helodrilus (Acystodrilus), Gatesona and Helodrilus (Helodrilus) included in this study for the molecular markers COI (below the diagonal) and 16S (above the diagonal).
Table 3.
Main morphological characters of the species and subspecies of Allolobophora (Gatesona) and related Helodrilus (Acystodrilus) species under study.
Fig 2.
External morphology of living specimens of a) Gatesona rutena b) Gatesona lablacherensis c) Gatesona serninensis.
Fig 3.
External and internal morphology of fixed specimens of Gatesona chaetophora (a, e, i) Gatesona rutena (b, f, j) Gatesona lablacherensis (c, g, k) and Gatesona serninensis (d, h, l). The insets show a detailed view of the pigmentary dots characteristic of Gatesona species (e, f, g, h), and their nephridial bladders (i, j, k, l). Abbreviations: cl. = clitellum, m. p. = male pore, t. p. = tubercula pubertatis.