Canonical plot of the seven Mesocriconema xenoplax HG are indicated by color and significant morphological features: knob width (knob), total body length (L), and stylet length (Sty). Rays are scaled in the canonical plots to 1.5. The larger ellipses denote 50% of the observations, assuming normality, respective to size, for the mean canonical variables. The smaller ellipses represent a 95% confidence ellipsoid for the means on the canonical variable. HG, haplotype group.