| neotropical monogenoidea. 58. three new species of gyrodactylus (gyrodactylidae) from scleromystax spp. (callichthyidae) and the proposal of coii gene as an additional fragment for barcoding gyrodactylids. | based on molecular markers (coii and its1-its2) and morphological data, we describe three new neotropical species of gyrodactylus von nordmann, 1832 from scleromystax barbatus (quoy et gaimard) and scleromystax macropterus (regan) from southern brazil. the three new species can be distinguished from each other by sequences of both molecular markers and morphology of hooks and anchors. gyrodactylus bueni sp. n. is characterised by having hook with shaft curved, heel straight, shelf straight, toe ... | 2014 | 25065127 |