Figure 2a from: Wayland M (2016) The Meristogram: a neglected tool for acanthocephalan systematics. Biodiversity Data Journal 4: e7606. https://doi.org/10.3897/BDJ.4.e7606

Figure 2a - Relationship between hook area estimated by the Meristogram and hook area measured using a digitising tablet in three species of the E. gadi group. The linear regression line is solid red. The line of equality is denoted by blue dashes. Analysis based on data in Suppl. material 2.
E. gadi sp. A. 70 hooks from six worms (four females and two males). Equation of regression line: estimated = 1.013 x measured + 46.898. Coefficient of determination (R2) = 0.887.