Odontoceti - Toothed Whales

SuperFamily Physeteriodea

This group includes both the Sperm Whale and its Pygmy and Dwarf relatives. The species have in common a spermaceti organ or 'case', which is fitted into a depression on the toothless upper jaw, an underslung lower jaw with large teeth and a comparatively simple air sinus system. There are two openings to the nasal passage divided by an external central septum but these are internal.

The Sperm Whale      Physeter macrocephalus General Information Sighting Information Distribution Map Current Research

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