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On the distribution, ecology and evolution of Gyrocotyle urna, Gyrocotyle confusa and Gyrocotyle nybelini (Cercomeromorpha: Gyrocotylidea) and their host Chimaera monstrosa (Holocephalida: Chimaeridae) in Norwegian waters, with a review of the species question. Sarsia, 77(2), 119–124
DOI: 10.1080/00364827.1992.10413497
Berland, B. & Bristow, G.A. & Grahl-Nielsen, O. (1990)
Chemotaxonomy of Gyrocotyle (Platyhelminthes: Cercomeria) species, parasites of chimaerid fish (Holocephali), by chemometry of their fatty acids. Marine Biology, 105(2), 185–189
DOI: 10.1007/BF01344285