Otolith description

Otolith medium, ovate/obovate with distinctive square appearance to posterior region. Dorsal margin slightly lobed; ventral margin approximately flat and entire; posterior margin approximately straight and entire. Distal surface convex; proximal surface flat. Sulcus groove heterosulcoid with ventral curve at posterior end; opening ostial. Cauda larger than ostium. Colliculum heteromorph. Collum absent. Crista superior extremely well defined and ridge-like over cauda, but absent over ostium; crista inferior well defined and ridge-like along sulcus and onto rostrum where it ends against a marginal notch in the anterior edge of the rostrum. Rostrum prominent, broad and rounded with notch in posterior end. Antirostrum absent. Excisura wide; notch shallow; angle 90°. Primordium lateral.

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