Figure 2 in Description of three new species of Quadriacanthus (Monogenea: Ancyrocephalidae) gill parasites of Clarias submarginatus (Siluriformes: Clariidae) from Lake Ossa (Littoral region, Cameroon)

Figure 2. Morphometrics of Quadriacanthus spp. used in this study are based on GUSSEV (1962) and modified by N'DOUBA et al. (1999). (An) Anchor: (a) length, (ba) base width, (e) point length; (Cc) copulatory complex: (Ap) accessory piece length, (Pe) penis length; (Cn) cuneus: (j) length, (i) width; (Db) dorsal bar: (ct) centre length, (h) median process length, (w) width, (x) length, (H) hooklet length; (Vb) ventral bar: (w) width, (x) length, (Vg) vagina.