Definitions
1.NounA rat of any of several species:
2.NounRattus sordidus (syn. Rattus conatus), a burrowing species that forms underground colonies, found in Australia.
3.NounRattus tunneyi, found in a variety of habitats, found in north and eastern Australia.
4.NounRattus nitidus.
5.NounRattus exulans, found in the Pacific islands and the third most numerous rat species on Earth.
6.NounRattus argentiventer, found in the tropics.
7.NounMaxomys surifer (syn. Rattus surifer solaris).
8.NounRattus tiomanicus.