The phylogenetic relationships of Glossiphoniidae, a leech family characterised by its high degree of parental care, were investigated with the combined use of morphological data and three molecular datasets. There was strong support for monophyly of most accepted genera in the group, many of which are consistent with eyespot morphology. The genera Desserobdella Barta & Sawyer, 1990 and Oligobdella Moore, 1918 are suppressed as junior synonyms of Placobdella Blanchard, 1893 and thus recognising each of Placobdella picta (Verrill, 1872) Moore, 1906, Placobdella phalera (Graf, 1899) Moore, 1906, and Placobdella biannulata (Moore, 1900), comb. nov. The species Glossiphonia elegans (Verrill, 1872) Castle, 1900 and Helobdella modesta (Verrill, 1872), comb. nov. are resurrected for the North American counterparts to European non-sanguivorous species. Glossphonia baicalensis (Stschegolew, 1922), comb. nov. is removed from the genus Torix Blanchard 1898 and Alboglossiphonia quadrata (Moore, 1949) Sawyer, 1986 is removed from the genus Hemiclepsis Vejdovsky, 1884. The biogeographic implications of the phylogenetic hypothesis are evaluated in the context of what is already known for vertebrate hosts and Tertiary continental arrangements.
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