Simplify the following text for a Grade 8 native English-speaking person.
Original: The Eastern Long-beaked Echidna ( Zaglossus bartoni ) , also known as Barton 's Long-beaked Echidna , is one of three species from the genus Zaglossus to occur in New Guinea .
Simplified: The Eastern Long-beaked Echidna ( Zaglossus bartoni ) , also known as Barton 's Long-beaked Echidna , is one of three species from the genus Zaglossus . All of them occur in New Guinea .