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Morphology of Potamotrygonocestus sp.1. Morphology of scolex (A); Isolated bothridia hooks (B); Mature proglottid (C); Cirrus sac (D); Gravid proglottid (E). Abbreviations: EC = everted cirrus; F = furca; GP = genital pore; HB = hook base; O = ovary; S = scolex; T = testes; U = uterus, and V = vitellaria.
