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Figure 4


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Scutogyrus longicornis (Paperna & Thurston, 1969) from the gills of Oreochromis niloticus (Linnaeus, 1758) from Pardo River, Paranapanema River basin, São Paulo state, Brazil. A. Haptor; B. Male copulatory complex; C. Vagina. Hoyer’s mounting medium. Legend: ap, accessory piece; da, dorsal anchor; db, dorsal bar; I–VII, hook pairs; pe, penis; va, ventral anchor; vb, ventral bar; and vg, vagina.

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