A.
In situ-preserved otolith of †L. aries [ = left saccular otolith, isolated from specimen MC-P-2011-01-TF5, see Fig. 4C1]; stereoscope photo and schematic drawing with terminology of characters. B. Otolith of the butid Kribia kribensis (Boulenger), West Africa (Cameron), IRSNB. C. Otolith of the eleotrid Mogurnda mogurnda (Richardson), Oceania, IRSNB. D. Otolith of the gobiid Gobius niger Linnaeus [ = mirrored right saccular otolith]; SEM photo and schematic drawing with terminology of characters, coll. W. Schwarzhans. E. Otolith of the odontobutid Odontobutis obscura (Temminck & Schlegel), Myanmar, IRSNB (drawing by D. Nolf). F. Otolith of the odontobutid Micropercops swinhonis (Günther), China, Bejing, Huwairiu county, USNM 336 833 (drawing by D. Nolf).