Data from ‘Arthropod-associated leeches (Annelida: Hirudinida) of the World: Diversity, taxonomic reappraisal, ecological classification of host associations, and convergent evolution’

This dataset contains datasets from our review paper entitled “Arthropod-associated leeches (Annelida: Hirudinida) of the World: Diversity, taxonomic reappraisal, ecological classification of host associations, and convergent evolution” (<i>Ecologica Montenegrina </i><b>89</b>: 38-87 (2025); https://doi.org/10.37828/em.2025.89.3).<b>Dataset S1.</b> Taxonomic diversity and hosts of arthropod-associated leeches of the World (only non-predatory interactions were included).<b>Dataset S2.</b> Georeferenced occurrences of leech-arthropod associations in the World.<b>Dataset S3.</b> Records of leeches in the genera <i>Paraclepsis</i> Harding, 1924 and <i>Palaemobdella</i> <b>gen. nov.</b> (Glossiphoniidae).<b>Dataset S4.</b> Measurements and DNA/iDNA sequence numbers of the type series of <i>Paraclepsis dongnaiensis</i> <b>sp. nov.</b>