Apogonidae, Gunther, 1859

Van Hinsbergh, Victor W. M. & Helwerda, Renate A., 2019, Fish Otoliths from the Cabarruyan Piacenzian-Gelasian fauna found in the Philippines, Zootaxa 4563 (3), pp. 401-443 : 425

Apogonidae indeterminate

(Figures 82–83)

Material: 2 specimens in total. Roxas (1) RGM 962132; Tiep2 (1) RGM 962133 .

Two small otoliths (OL:OH= 1.12–1.42) with a somewhat eroded appearance are available. They are characterized by a protracted shape along the anterioventral- posteriodorsal line accompanied by a blunt rounded rostrum and their sulcus. The sulcus is equally divided in a broad rounded ostium and a cauda that contains a clear pseudocolliculum. The ventral rim is almost round at its anterior part, while the curvature decreases in posterior direction; the deepest point is localized at about 1/3 of the otolith. The posterior rim is rounded with blunt undulation above the middle of the clear dorsal field and a protracted round posterior part that ends at the lower part of the cauda in a shallow indentation. The ventral field is convex with an indistinct ventral furrow; the middorsal inner surface is less convex with a clear dorsal field. Outer surface convex.