Beaked Whale Identification Guide
Tooth position
A single pair of teeth are positioned sub-terminally at the apex of the mandible.

Tooth exposure
Nearly all of erupted teeth in adult males are exposed above the gumline. Teeth do not erupt in females or juveniles.

Tooth shape
The shape of the exposed tooth is a rough isosceles triangle, but with a smoothly convex anterior margin. Angle formed by the denticle is 60 to 65 degrees. Dimensions for an adult male tooth measured 64 mm long, 47 mm wide, and 12 mm broad.
Mesoplodon perrini - Anterior lateral beak
Adult male - USNM 504853 (Type specimen at NMNH)
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