FIG. 1 in Re-assessment of the medicinal leech Hirudo medicinalis Linnaeus, 1758, in Ireland

FIG. 1. — As early as 1827 the French hirudinologist Alfred Moquin-Tandon illustrated several nominal species of medicinal leech from western Europe (Moquin-Tandon 1827: 114-118). A, Hirudo medicinalis Linnaeus, 1758, from northern Europe; B, Hirudo troctina Johnson, 1816, from pharmacies in Montpellier.These species distinctions have been corroborated recently, both genetically and geographically (Utevsky et al. 2010; Trontelj & Utevsky 2012). Which species is indigenous to Ireland is discussed in the text. Scale bar: 1.0 cm.