Reference

Raja Ben Ahmed, A. Halim Harrath, Saida Tekaya (2008): Ecological and biological features of four Tunisian fresh-water leeches: Batracobdella algira, Alboglossiphonia hyalina, Theromyzon tessulatum, and Erpobdella testacea. – Lauterbornia – 2008_65: 177 - 192.