FIGURE 1. Approximate native distribution (in yellow) of the subfamily Bipaliinae, modified from von Graff (1899) and Ogren et al. (1992). Localities of new species described in the present paper are indicated with numbers: 1) Bipalium rhytidoantrum; 2) B. rugiantrum; 3) Humbertium ithorense; 4) Novibipalium rhynchophorum; 5) Umbotectum capitofalcatum; 6) U. t-maculatum; 7) U. flagellum; 8) Diversibipalium marginatanigrum; 9) D. castaneum; 10) D. cephalolacteum; 11) D. contortolineatum; 12) D. duplalaticlavium. Introduced species (present worldwide, excepting Antarctica) have been excluded from the map.

Published as part of Solà, Eduard, Sluys, Ronald, Riutort, Marta & Kawakatsu, Masaharu, 2023, Molecular phylogenetics facilitates the first historical biogeographic analysis of the hammerhead worms (Platyhelminthes: Tricladida: Bipaliinae), with the description of twelve new species and two new genera, pp. 1-77 in Zootaxa 5335 (1) on page 5, DOI: 10.11646/zootaxa.5335.1.1, http://zenodo.org/record/8261375