JEB -- Ridgway et al. 204 (22): 3829 Figure IG1

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Fig. 1. Radiograph of the nasal and auditory areas of the head of a white whale adult (Delphinapterus leucas) that died of natural causes (not one of the subjects of this report). The path of the Eustachian tube to the nasal cavity is traced on one side. Scale bar, 5 cm.