Mammals of the World
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Arnoux's Beaked Whale

Berardius arnuxii

Order
Artiodactyla
Family
Ziphiidae
Genus
Berardius
IUCN status
LC
Distribution
Antarctica|Argentina|Australia|Brazil|Chile|Falkland Islands|French Southern and Antarctic Lands|New Zealand|South Africa|South Georgia and the South Sandwich Islands|Uruguay
Realm
Marine

Other names: New Zealand Beaked Whale|Southern Four-toothed Whale

About this species

Size
Length 9–12 m
Habitat
Deep cold oceanic waters
Range
Surrounding seas

Berardius arnuxii is a very large beaked whale of southern cold waters. It differs from the smaller southern bottlenose whale through its longer beak and paired teeth visible at the lower-jaw tip. It has a long cylindrical body, small flippers and a modest dorsal fin set far back. Adults are often scarred, and the forehead slopes into a distinct beak.

It occurs around Antarctica and in deep waters near New Zealand’s subantarctic islands. Confirmed sightings at sea are scarce. It makes deep dives, probably taking squid and deep-water fish. Groups can be close-knit and may surface together.

The New Zealand classification is Data Deficient. Subantarctic expedition voyages provide a remote possibility, but there is no reliable viewing site.

Description: Wildlife of New Zealand guide, Wildlife of Everywhere (wildlifeofeverywhere.com)

Photos (1)

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CC-BY-SA-4.0 — Ted Cheeseman — via iNaturalist (source)