Beaked Whale Identification Guide

Lateral View of Antorbital Region

The antorbital region is composed of four bones: the maxillary, frontal, lacrimal and jugal. The arrangement of these bones at the most anterior projection of this region, called the apex of the antorbital tubercle , differs among the various species of beaked whales and can serve as a diagnostic feature.
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The apex of the antorbital tubercle is composed of the maxilla and lacrimal.
The apex of the antorbital tubercle is composed the lacrimal.
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