A variable grey-white anchor or W-shaped patch on the chests of some smaller toothed whales (e.g. Pymy killer whale, Melon-headed whale, False killer whale, Short-finned pilot whale and Long-finned pilot whale) .
- ^ Carwardine, Mark; Illustrated by Camm, Martin (2002). Whales, Dolphins and Porpoises. Dorling Kindersley Limited. ISBN 0789489902.
|| This article is part of Project Mammal Anatomy, a All Birds project that aims to write comprehensive articles on each anatomical term related to mammals.
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