The Chinstrap Penguin is a small species of penguin with a distinct line at its throat, giving it its name. It only appears in Endless Ocean: Blue World.
"They have a white face with a characteristic black line at their throat that gives them their name, They are found on Antarctic islands, which is reflected in their scientific name, Pygoscelis Antarctica."
These penguins swim about underwater in wide, looping patterns. On land, they stand and waddle around, and respond positively to food and being petted.