Species and description The best-known rat species are the MISC@1 -LRB- Rattus rattus -RRB- and the MISC@2 -LRB- Rattus norvegicus -RRB- .

The best known rats are the Black rat -LRB- Rattus rattus -RRB- , and the PERSON@1 rat -LRB- R. norvegicus -RRB- .
