The mammals were discovered near the northern coast of Australia and were at first thought to be part of the humpback dolphin species.
But genetic testing proved that wasn’t the case leaving scientists to decide what the new animals are.
"One of the reasons we're finding new species is because we're finding new tools," one researcher told National Geographic.
"Genetics opens a new window into these kinds of questions," he continued.
It’s now believed there are four separate species of the humpback dolphin instead of two as previously thought.
It’s likely this new species will fit into a humpback category but scientists are still excited. After all, it’s not every day a new mammal is found.
There I some worry that the species is and will continue to be threatened by environmental pressures.
Other interesting dolphin news finds they're similar to bats.