FIGURE 4 in Cathorops festae (Boulenger 1898) (Siluriformes; Ariidae), a valid species from Ecuador and Peru

FIGURE 4. Plots of standard length versus nuchal plate width (A), anal fin base length (B), distance from snout to dorsal fin (C), and supraocciptal process length (D), in Cathorops festae (open square = type specimen; solid squares = non type specimens), C. manglarensis (solid triangle = holotype; open triangles = paratypes; open diamond = specimen from Peru), C. multiradiatus (solid circle = neotype; open circle = non-type specimens), and the Tachysurus equatorialis holotype (asterisk).