Family Iniidae
This family regroups the Amazon river dolphin species.

Family Delphinidae
This family regroups all dolphins, killer whales and their relatives.

Grampus griseus – Risso’s dolphin
Lagenorhynchus obliquidens – Pacific white-sided dolphin
Orcinus orca – Killer whale
Sousa chinensis – Indo-Pacific humpback dolphin
Tursiops aduncus – Indo-Pacific bottlenose dolphin

Family Phocoenidae
This family regroups all porpoises.

Family Monodontidae
This family regroups narwhals and belugas.

Delphinapterus leucas – Beluga