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Figure 7

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Light photomicrographs of Urocleidoides amazonensis i. s., a parasite of Phractocephalus hemioliopterus, from Tapajós River Basin, Pará, Brazil. A – anterior region of the head showing four pairs of head organs. B – copulatory complex, MCO, base of MCO (BMCO), accessory piece (A). C – ventral bar and anchor. D – dorsal bar and anchors. Scale bar = 15 µm.

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