Otolith description

Otolith very small, ovate. Dorsal margin lobed; ventral margin entire to sinuate; posterior margin entire to gently lobed. Sulcus groove heterosulcoid; opening ostio-caudal. Ostium twice as large as cauda. Colliculum deep and heteromorph. Collum narrow and abutting on ostium. Crista superior and crista inferior distinct and raised. Rostrum short and rounded. Antirostrum absent. Excisura varies from wide to notch-like. Dorsal area depression shallow and narrow above length of cauda. Ventral area covered by circuli-like ridges and ventral groove present.

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