Beaked Whale Identification Guide

Dorsal View
of Vertex

Select the image that best represents your specimen
The combined middle surfaces of the nasal bones are not depressed posteriorly by a sulcus (depression or groove).
The combined surfaces of the nasal bones are so depressed posteriorly by a sulcus (depression or groove) that it is the lateral portion of each nasal bone that reaches farthest forward on the vertex.
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