Otolith description

Otolith very small, hour-glass shaped. Dorsal margin flat, but angled and entire/irregular; ventral margin rounded and irregular; posterior margin deeply notched and irregular. Distal surface flat, proximal surface irregular. Sulcus groove deep, homosulcoid; opening ostio-caudal. Colliculum homomorph; two colliculi indistinct. Collum distinct, bridge-like. Crista superior poorly developed over ostium and cauda and absent at neck; crista inferior ridge-like and broad, extending onto rostrum and pseudo-rostrum. Rostrum broad notched and sharply rounded. Antirostrum small broad and sharply rounded. Excisura wide; notch deep; angle acute. Dorsal area reduced. Ventral area depression deep, following line of crista inferior.

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