Sicohencotyle antoniomaiai n. gen. n. sp. (ventral view), a parasite of Phractocephalus hemioliopterus, from the Tapajós river basin, Pará, Brazil. A – Whole helminth. B and C – MCO in, respectively, ventral and dorsal view. D – vagina, highlighting the vaginal sclerite (VGS). E and F – ventral bar and anchor. G and H – dorsal bar and anchor, I – hooks pairs 1 to 7, from left. Scale bar = 150 µm (A), 25 µm (B, C), 15 µm (D, I), 20 µm (E–H).