Other Definitions
sirenia (dict)
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SireniaDugongidae
Trichechidae - For information about the Gothic metal band, see Sirenia (band)
Sirenia are herbivorous mammals of coastal waters. They have evolved aquatic adaptations: they have arms, which are modified into paddles, but no legs, are fat, and have highly modified skulls with greatly reduced dentition. Their nipples are under their arms (see the picture of a pair of manatees). The Trichechidae differ from the Dugongidae in the shape of the skull and the shape of the tail. External link The earliest known Sirenian is Pezosiren portelli.
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