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. 2005 Sep 14;360(1462):1905–1916. doi: 10.1098/rstb.2005.1722

Figure 4.

Figure 4

A DNA barcoding example from the leech species Helobdella europaea (Glossiphoniidae). The table shows diagnostic sites for Helobdella europaea (figured at top). Diagnostic characters, reading left to right, are position numbers 273, 471 and 501 in cox1, and 1160 in ND1. DNA barcoding of a broad geographic sampling along with morphological dissections and comparison to described species allowed Siddall & Budinoff (2005) to clarify the nomenclature of this species and shed light on possible explanations for an unexpected geographic distribution.