Order: Cetacea (dolphins and Whales)
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- Family: Delphinidae
- Genus: Delphinus
- Common Dolphin Delphinus Delphis LR/lc
- Genus: Globicephala
- Long-finned Pilot Whale Globicephala melas LR/lc
- Genus: Grampus
- Risso's Dolphin Grampus griseus DD
- Genus: Orcinus
- Orca Orcinus orca LR/cd
- Genus: Stenella
- Striped Dolphin Stenella coeruleoalba LR/cd
- Genus: Tursiops
- Bottlenose Dolphin Tursiops truncatus DD
- Genus: Delphinus
- Family: Delphinidae
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- Family: Physeteridae
- Genus: Physeter
- Sperm Whale Physeter macrocephalus VU
- Genus: Physeter
- Family: Physeteridae
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- Family: Ziphidae
- Genus: Ziphius
- Cuvier's Beaked Whale Ziphius cavirostris DD
- Genus: Ziphius
- Family: Ziphidae
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- Family: Balaenopteridae
- Genus: Balaenoptera
- Minke Whale Balaenoptera acutorostrata NT
- Genus: Balaenoptera
- Family: Balaenopteridae
- Suborder: Mysticeti
- Family: Balaenoptiidae
- Genus: Balaenoptera
- Fin Whale Balaenoptera physalus EN
- Genus: Balaenoptera
- Family: Balaenoptiidae
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- Family: Balaenopteridae
- Genus: Megaptera
- Humpback Whale Megaptera novaeangliae VU
- Genus: Megaptera
- Family: Balaenopteridae
Read more about this topic: List Of Mammals Of Gibraltar