What are the names of all the different species of penguins?

Penguins are all from the order Sphenisciformes and family Spheniscidae. There are believed to be 17 species of penguin. They include:

• Adelie
• Emperor
• Fairy (also known as Little or Little Blue)
• Chinstrap
• Gentoo
• Yellow-eyed
• African
• Galapagos
• Rockhopper
• Macaroni
• Fjordland
• Magellanic
• Humboldt
• Erect-crested
• Snares
• King
• Royal

Some sources state that Rockhopper penguins have been split into several sub species. The species status of the Royal Penguin is disputed.