FIGURE 3. Hamulus morphological measurements. A in Towards addressing the current state of confusion within the Hexabothriidae Price, 1942 (1908): Callorhynchocotyle Suriano & Incorvaia, 1982 (Monogenea: Hexabothriidae) re-visited, with the preliminary evaluation of novel parameters for measuring haptoral armature of hexabothriids

FIGURE 3. Hamulus morphological measurements. A. Rectangular grid, total length; line a–b, total diameter; line c–d; hook shank length; line e–f, hook point length; line f–g, distal hook point width; line f–h. B. Outer aperture angle (x) from vertex (f) by rays f–g, f–i, Root base angle (y) from vertex (j) by rays j–k, j–l. C. Inner aperture angle (z) from vertex (h) by rays h–g, h– i. Aperture; line g–i, hook shank base width; line e–i, outer root shaft length; line i–m, inner root shaft length; line i–n, root base width; line m–n. Abbreviations as for Fig. 1.