Figures 22-30 from: de Freitas ÁJ.B, Bezerra CA.M, Meneses YC, Justo MCN, Viana DC, Cohen SC (2021) Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil. Zoologia 38: 1-11. https://doi.org/10.3897/zoologia.38.e65001

Figures 22-30 Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm.