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SMNS 25264 (1 specimen), fish market SãoTomé City. This specimen is part of the Arnoglossus laterna (Walbaum, 1792) complex, and agrees with the typical A laterna in its 88 dorsal fin rays, 70 anal fin rays, eye and lower jaw proportions, and lacking elongate dorsal fin rays. However, it differs in having 59 lateral line scales (50-56 in A. laterna ), 9 pectoral fin rays (10-11 in A. laterna ), the first ray elongate (normal in A. laterna ). The SãoTomé population probably belongs to an undescribed species, but more material is needed to determine the variability of its counts and measurements.