ROUS

They have been found in Papua New Guinea.
From the CNN article:
Measuring 82 centimeters (32.2 inches) from nose to tail and weighing around 1.5 kilograms (3.3 pounds), the species is thought to be one of the largest rats ever to be found.
This is one of the world's largest rats. It's a true rat, the same kind you find in the city sewers," said Kristofer Helgen, a biologist from the Smithsonian National Museum of Natural History, who was part of the expedition team.
"To find new species of insects in this region isn't uncommon, ... this giant bloody rat -- the size of a cat. Amazing!"

Jay G wants to know what you would use for one of these scurrying about in your pantry.

My answer? I'm going to side with the Dred Pirate Roberts and use a sword.