Otolith description

Otolith very small, oval to discoid. Dorsal margin sinuate to crenate; ventral margin rounded and sinuate/ crenate; posterior margin rounded to irregular. Distal surface concave; proximal surface convex. Sulcus groove heterosulcoid; opening ostial to nearly ostio-caudal. Ostium and cauda similar in size, well defined and deep. Colliculum heteromorph, indistinct. Collum broad and low. Crista superior distinct and ridge-like and extends along sulcus; crista inferior well defined at neck, but poorly developed at extremes. Rostrum short and rounded to pointed. Antirostrum similar in shape, but smaller than rostrum. Excisura shallow and wide angled in small specimens to deep with acute angle in larger ones. Dorsal area depression broad and shallow. Ventral area raised, groove present. Primordium central.

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