ArticleGoogle Scholar Govedich FR, Bain BA et al (2010) Annelida (Clitellata): Oligochaeta, Branchiobdellida, Hiurdinida, and Acanthobdellida. In: Thorpe JH, Covich AP (eds) Ecology and classification of North American freshwater invertebrates. Academic, London, pp 385–436 ChapterGoogle Schol...