FIGURE 2 in Retroculus acherontos, a new species of cichlid fish (Teleostei) from the Rio Tocantins basin

FIGURE 2. Vomero-Palatine apparatus of (A) Retroculus acherontos, MZUSP 85826, 161.3 mm SL, (B) R. xinguensis, MZUSP 40682, 78.2 mm SL, and (C) R. septentrionalis, paratype, MZUSP 38947, 106.2 mm SL. Ventral view, anterior to top. Arrows indicate the lateral depressions. V indicate the ventral projection of vomer.