Choricotyle spp. from Haemulon plumieri from Campeche Bank, Mexico: Choricotyle sp. 1. (A), clamp (B), genital atrium (F), hook. Choricotyle sp. 2. (C), clamp (D), genital atrium (G), hook. Choricotyle sp. 3. (E), clamp. Scale bars: 100 µm and 20 µm for all figures, except E 50 µm and F, G 10 µm. Abbreviations: Ca = concentric arcs; Sc = sucker; Fi = filament; Mp = posterior portion of the medial sclerite; sh = shank.