Aroyan (1990). Aroyan (1990) Ridgway (2011) Suborder Odontoceti, Family Platanistidae Members “River dolphins”

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Presentation transcript:

Aroyan (1990)

Ridgway (2011)

Suborder Odontoceti, Family Platanistidae Members “River dolphins”

Suborder Odontoceti, Family Iniidae Members “River dolphins”

Distinctive features Spatulate flippers Small eyes Flexible neck https://www.youtube.com/watch?v=FkdCbpZcR9M

Order Sirenia Manatees Dugongs

Manatees Distinctive features Bristly muzzle ‘Normal’ mouth

Manatees Distinctive features Paddle-shaped tail Slow moving Feed throughout the water column

Dugongs Distinctive features Modified and greatly expanded upper lip – rostral disk Tusks – male dugongs Cetacean-like tail flukes Move quickly Bottom feeders https://www.youtube.com/watch?v=YProaycNpHE