Malmberg, G. (1970). The excretory systems and the marginal hooks as a basis for the systematics of Gyrodactylus (Trematoda, Monogenea). Arkiv for Zoologie23 1-237.
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Malmberg, G.
1970
The excretory systems and the marginal hooks as a basis for the systematics of Gyrodactylus (Trematoda