Marlene seeing Peter in Animagus form in the common room: "Oh, James what an adorable mouse! Is he yours?" "Yes, but he's a rat not a mouse" replied James "Well he's an adorable rat. So, what's his name?" "Umm Meter Nettigew" said James quickly "funny that sounds just like (bell rings) ,oh, gotta run to charms" after peter transforms back: "Really Prongs, Neter Mettigrew that's the best you can do? she'll never guess it's me now."
Black rat (Rattus rattus). Slightly smaller and more slender than the brown rat (Rattus norvegicus), it also has a longer tail, a pointier nose and larger ears. It was spread around the world by Europeans, but has now largely been replaced (at least in colder and more urban areas) by the heavier, more aggressive brown rat who also tends to have more babies. Brown rats are also burrowing animals while black rats are arboreal. They are still considered of least concern in the wild.