Beaked Whale Identification Guide
Tooth position
A single pair of teeth are positioned back from the apex at 50 - 60% of total length of the mouthline. The strap-like teeth are strongly inclined posteriorly at an approximate angle of 45 degrees.

Tooth exposure
Teeth of adult males fully erupt from the gumline, reaching up to 30 in length, and may wrap around the dorsal rostrum, preventing the animal from opening its jaws.Teeth in females and juveniles do not erupt.

Tooth shape
The strap-like teeth taper towards the tip. The denticle is located on the outer side of the tooth, rather than the apex.
Mesoplodon layardii - Right medial tooth
Adult male - USNM 550150
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