FIGURE 5. Curculionichthys itaim, LBP 14102, 21.5 in Two new species of Curculionichthys (Siluriformes: Loricariidae) from the rio Amazonas basin, Brazil

FIGURE 5. Curculionichthys itaim, LBP 14102, 21.5 mm SL. A) Ventral view showing intraspecific variation in abdominal plates; B) Shape of the spinelet. Neurocranium in C) dorsal and D) dorsolateral views. Abbreviations are: f = frontal; io1–4 = infraorbitals; cpt = compound pterotic; pr1–3 postrostral plates; op = opercle; pf = prefrontal; n = nasal; pn = prenasal; r = rostral plate; pop = preopercle; cp1–2 = subocular cheek plate; sp = sphenotic; soc = parieto-supraoccipital; spop = supraopercular plate. Scale bars: 0.5 mm (B); 1 mm (A, C, D).