FIG. 2 in A revision of Benedenia Diesing, 1858 including a redescription of B. sciaenae (van Beneden, 1856) Odhner, 1905 and recognition of Menziesia Gibson, 1976 (Monogenea: Capsalidae)

FIG. 2. Diagrammatic representation of the male copulatory organ and associated structures of (A) Benedenia as resolved in the present study, (B) the arrangement proposed by Yamaguti (1968) for B. scari and (C) Neobenedenia (after Whittington and Horton, 1996). Note that the arrangement in (A) Benedenia shows a muscular penis (pe) occupying a penis canal (pc) with a weakly muscular wall whereas in Neobenedenia (C), the comparatively weakly muscular penis occupies a strongly muscular penis sac (ps). agd, ducts of the accessory glands supplying the accessory gland reservoir; agr, accessory gland reservoir (5`prostatic reservoir' of Yamaguti, 1968); cgp, common genital pore; da, duct of accessory gland reservoir (5`prostatic duct' of Yamaguti, 1968); pc, penis canal (5`cirrus pouch' of Yamaguti, 1968); pe, penis (5`cirrus' of Yamaguti, 1968); ps, penis sac (5`cirrus pouch' of Yamaguti, 1968); sr, sperm reservoir; u, uterus; vd, vas deferens; wa, wall of accessory gland reservoir (5`prostatic reservoir' of Yamaguti, 1968).