Beaked Whale Identification Guide
Head Shape
The melon bulges slightly anterior to the blowhole and slopes smoothly to the short beak. The mouthline arches strongly in males, though this sinusoidal curves is less pronounced in females and juveniles.

Coloration
Adults of both sexes have a similar pigmentation pattern. Dark gray dorsally, laterally, and grading to a lighter gray ventrally, especially posterior to the navel and on the underside of the beak. The coloration of calves reflects adult color, brown on dorsum and lateral sides and becoming grayish white on the ventral surface. The lighter color also extends up posterior and dorsal to the eye. The beak is grayish white with a brown tip, small brown patches are present near the angle of the mouth and between the throat grooves.

Size
Adult body length range is unknown. Recorded maximum body length for adult males and females is 3.7 m and 3.6 m, respectively. Length at birth is 1.6 m.

Most Likely Confused With:
Mesoplodon peruvianus - Lateral body
Adult female - STR7423
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