Saglam, N., Kutschera, U., Saunders, R., Saidel, W., Balombini, K. & Shain, D. (2018) Phylogenetic and morphological resolution of the &ITHelobdella stagnalis&IT species-complex (Annelida: Clitellata: Hirudinea). ZOOTAXA , 4403(1), 61-86.