Dolphin Species
There are currently 32 recongnized species of dolphins. This includes both oceanic dolphins and river dolphins. Below I have put together a dolphin species list. I have grouped the dolphin classes into these groups;
Oceanic Dolphins with prominent beaks, Oceanic Dolphins without prominent beaks, BlackFish (Killer whales etc) and River Dolphins. I have included the latin names as well.
Oceanic Dolphins With Prominent Beaks
Common Dolphin  (Delphinus delphis)

Northern Rightwhale Dolphin 
(Lissodelphis borealis)

Southern Rightwhale Dolphin  (Lissodelphis peronii)

Tucuxi 
(Sotalia fluviatilis)

Indo-Pacific Hump-Backed Dolphin  (Sousa chinensis)

Atlantic Hump-Backed Dolphin 
(Sousa teuszii)

Striped Dolphin (Stenella coeruleoalba)

Short-Snouted Spinner Dolphin  (Stenella clymene)

Long-Snouted Spinner Dolphin  (Stenella longirostris)

Pantropical Spotted Dolphin  (Stenella attenuata)

Atlantic Spotted Dolphin  (Stenella frontalis)

Rough-Toothed Dolphin  (Steno bredanensis)

Bottlenose Dolphin  (Tursiops truncatus)
Oceanic Dolphins Without Prominent Beaks
Commerson's Dolphin  (Cephalorhynchus commersonii)

Black Dolphin (Cephalorhynchus eutropia)

Heaviside's Dolphin  (Cephalorhynchus heavisidii)

Hector's Dolphin  (Cephalorhynchus hectori)

Risso's Dolphin  (Grampus griseus)

Fraser's Dolphin  (Langenodelphis hosei)

Atlantic White-Sided Dolphin  (Lagenorhynchus actus)

Pacific White-Sided Dolphin  (Lagenorhynchus obliquidens)

Dusky Dolphin (Lagenorhynchus obscurus)

White-Beaked Dolphin  (Lagenorhynchus albirostris)

Peale's Dolphin  (Lagenorhynchus australis)

Hourglass Dolphin (Lagenorhynchus cruciger)

Irrawaddy Dolphin (Orcaella brevirostris)
BlackFish
Pygmy Killer Whale  (Feresa attenuata)

Short-Finned Pilot Whale  (Globicephala macrorhynchus)

Long-Finned Pilot Whale 
(Globicephala melas)

Killer Whale 
(Orcinus orca)

Melon-Headed Whale 
(Peponocephala electra)

False Killer Whale 
(Pseudorca crassindens)
River Dolphins
Boto  (Inia geoffrensis)

Baiji  (Lipotes vexillifer)

Indus River Dolphin  (Platanista minor)

Ganges River Dolphin  (Platanista gangetica)

Franciscana
(Pontoporia blainvillei)