Otolith description

Otolith large, triangular with keeled ventral margin. Dorsal margin flattened, lobed posteriorly; ventral margin keeled and irregular to crenate. Sulcus groove heterosulcoid; opening ostial, but may be ostio-caudal. Ostium larger than cauda. Colliculum heteromorph; anterior colliculum distinct; posterior colliculum indistinct. Collum absent. Crista superior well defined and ridge-like, absent at tip; crista inferior developed under ostium, poorly developed under cauda. Rostrum broad and sharply rounded. Antirostrum small and sharply rounded. Excisura moderate; notch shallow; angle wide. Pseudo-rostrum moderate, broad and rounded; pseudo-antirostrum broad, rounded.

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