The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.


  • Hoxhold S. 1974. Zur populationsstruktur und abundanzdynamik interstitieller Kalyptorhynchia (Turbellaria, Neorhabdocoela) Mikrofauna des Meeresbodens 41: 3-133
  • Schilke K. (1970) Kalyptorhynchia (Turbellaria) aus dem Eulitoral der Deutschen Nordseekuste Helgolander wissenschaftliche Meeresuntersuchungen 21: 143-265
  • WoRMS (2015). Nigerrhynchus opisthoporus. In: Artois, T.; Schockaert, E. & Tyler, S. (2015) World database of Proseriata and Kalyptorhynchia. Accessed through: World Register of Marine Species at


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