Otolith description

Otolith medium, circular/rhomboidal. Dorsal margin irregular, ventral margin rounded and sinuate; posterior margin rounded sinuate. Distal and proximal surfaces convex (distinct raised lobes may occur on distal surface). Sulcus groove shallow, heterosulcoid; opening ostial. Colliculum heteromorph. Crista superior well developed to ridge-like; crista inferior well developed. Rostrum broad and sharply rounded. Antirostrum small and sharply rounded to pointed. Excisura wide; notch shallow; angle acute. Dorsal area depression shallow, extending from antirostrum to mid-cauda. Ventral area depression absent. Primordium central.

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