Gil, João; Glasby, C. J; Martin, Daniel. Chapter 12. Phylum Annelida. Class Aphanoneura. In: Rogers, D.C. Thorp, J.H. (Eds.) Thorp and Covich’s Freshwater Invertebrates, Fourth Edition. Volume IV – Keys to Palaearctic Fauna. Academic Press. Pp. 508-512 (2019) DIGITAL CSIC CAPÍTOL DE LLIBRE