Tamburi, N.E. and Cazzaniga, N.J. 2006. The freshwater ribbon-worm Prostoma graecense (Hoplonemertea: Monostilifera) in South America (Argentina). Zootaxa. 1248, 1 (Jun. 2006), 27–34. DOI:https://doi.org/10.11646/zootaxa.1248.1.3.