Wednesday, January 20, 2010
Taxonomic Classification for Dolphins
Chinese River Dolphin
Taxonomic Classification
Kingdom :Animilia
Phylum :Chordata
Class :Mammalia
Subclass:Eutheria
Order :Cetacea
Suborder:Odontoceti
Family :Lipotidae
Genus :Lipotes
Species :L. vexillifer
Bottlenose Dolphin
Taxonomic Classification
Kingdom : Animilia(Animals)
Phylum : Chordata(Chordates)
Class : Mammalia(Mammals)
Subclass: Eutheria
Order : Cetacea(Cetaceans)
Suborder: Odontoceti(Odontocetes)
Family : Delphinidae(Marine Dolphins)
Genus : Tursiops
Species : truncatus
Most of the dolphins including Tursiops truncatus (bottlenose dolphins) are cetaceans. The order Cetacea includes whales, dolphins, and porpoises. Cetaceans are the mammals best adapted to aquatic life. The Order Cetacea is further divided into two suborders, Odontoceti (toothed whales) and Mysticeti (baleen whales). Mysticetes do not have teeth but have baleen plates suspended from the roof of their mouth and have two nasal openings (blowholes). Odontocetes (which include bottlenose dolphins) have anywhere from 2-250 teeth and a single nasal opening.
The Boto, or Amazon River Dolphin
• Suborder Odontoceti, toothed whales
o Family Delphinidae, oceanic dolphins
Genus Delphinus
Long-Beaked Common Dolphin, Delphinus capensis
Short-Beaked Common Dolphin, Delphinus delphis
Genus Tursiops
Common Bottlenose Dolphin, Tursiops truncatus
Indo-Pacific Bottlenose Dolphin, Tursiops aduncus
Genus Lissodelphis
Northern Rightwhale Dolphin, Lissodelphis borealis
Southern Rightwhale Dolphin, Lissiodelphis peronii
Genus Sotalia
Tucuxi, Sotalia fluviatilis
Costero, Sotalia guianensis
Genus Sousa
Indo-Pacific Hump-backed Dolphin, Sousa chinensis
Chinese White Dolphin (the Chinese variant), Sousa chinensis chinensis
Atlantic Humpbacked Dolphin, Sousa teuszii
Genus Stenella
Atlantic Spotted Dolphin, Stenella frontalis
Clymene Dolphin, Stenella clymene
Pantropical Spotted Dolphin, Stenella attenuata
Spinner Dolphin, Stenella longirostris
Striped Dolphin, Stenella coeruleoalba
Genus Steno
Rough-Toothed Dolphin, Steno bredanensis
Genus Cephalorynchus
Chilean Dolphin, Cephalorhynchus eutropia
Commerson's Dolphin, Cephalorhynchus commersonii
Heaviside's Dolphin, Cephalorhynchus heavisidii
Hector's Dolphin, Cephalorhynchus hectori
Genus Grampus
Risso's Dolphin, Grampus griseus
Genus Lagenodelphis
Fraser's Dolphin, Lagenodelphis hosei
Genus Lagenorhyncus
Atlantic White-Sided Dolphin, Lagenorhynchus acutus
Dusky Dolphin, Lagenorhynchus obscurus
Hourglass Dolphin, Lagenorhynchus cruciger
Pacific White-Sided Dolphin, Lagenorhynchus obliquidens
Peale's Dolphin, Lagenorhynchus australis
White-Beaked Dolphin, Lagenorhynchus albirostris
Genus Orcaella
Australian Snubfin Dolphin, Orcaella heinsohni
Irrawaddy Dolphin, Orcaella brevirostris
Genus Peponocephala
Melon-headed Whale, Peponocephala electra
Genus Orcinus
Killer Whale (Orca), Orcinus orca
Genus Feresa
Pygmy Killer Whale, Feresa attenuata
Genus Pseudorca
False Killer Whale, Pseudorca crassidens
Genus Globicephala
Long-finned Pilot Whale, Globicephala melas
Short-finned Pilot Whale, Globicephala macrorhynchus
Genus †Australodelphis
†Australodelphis mirus
o Superfamily Platanistoidea
Family Platanistidae
Ganges and Indus River Dolphin, Platanista gangetica with two subspecies
Ganges River Dolphin (or Susu), Platanista gangetica gangetica
Indus River Dolphin (or Bhulan), Platanista gangetica minor
Family Iniidae
Amazon River Dolphin (or Boto), Inia geoffrensis
Family Lipotidae
Chinese River Dolphin (or Baiji), Lipotes vexillifer (possibly extinct, since December 2006)
Family Pontoporiidae
La Plata Dolphin (or Franciscana), Pontoporia blainvillei
Six species in the family Delphinidae are commonly called "whales" but genetically are dolphins. They are sometimes called blackfish.
• Melon-headed Whale, Peponocephala electra
• Killer Whale (Orca), Orcinus orca
• Pygmy Killer Whale, Feresa attenuata
• False Killer Whale, Pseudorca crassidens
• Long-finned Pilot Whale, Globicephala melas
• Short-finned Pilot Whale, Globicephala macrorhynchus