FIGURE 4 in A new species of Corydoras (Siluriformes: Callichthyidae) from the rio Madre de Dios basin, Peruvian Amazon, with comments on Corydoras aeneus identity

FIGURE 4 | Predorsal region of trunk in c&s paratypes of Corydoras maclurei, showing the variation in the distance between the posterior process of the parieto-supraoccipital and the nuchal plate, which ranges from (A) clearly separated from each other (CITL 430, 45.6 mm SL) to (B) separated but nearly contacting (CITL 430, 38.2 mm SL). Abbreviations: fdbp: first dorsolateral body plate, np: nuchal plate, pso: parieto-supraoccipital, spn: spinelet. Dotted lines indicate the limits of the tip of the posterior process of the parieto-supraoccipital and anterior tip of the nuchal plate. Red arrows indicate the small platelets between parieto-supraoccipital and nuchal plate. Scale bar = 1 mm.