Rattus nativitatis är en utdöd däggdjursart som först beskrevs av Thomas 1889. Rattus nativitatis ingår i släktet råttor och familjen råttdjur. The bulldog rat (Rattus nativitatis) was a species of rat endemic to Christmas Island in the Indian Ocean.

The rats lived on the higher hills and denser forests of . Population: The Bulldog Rat became extinct probably between 19and 1904. This species was never as abundant as the other native rat to Christmas Islan . A web page from The Sixth Extinction website with a species profile of the extinct Bulldog Rat (Rattus nativitatis).

The Christmas Island Rat was a large rat (considerably larger than the Black Rat, Rattus rattus). Its weight was not recorde but has been estimated at 250–300 . The Bulldog Rat (Rattus nativitatis) was a species of rat endemic to Christmas Island in the Indian Ocean. The Bulldog rat (Rattus nativitatis) is an extinct species that once lived in the Indian Ocean area of Christmas Island. When the Bulldog rat was alive and thriving . Notes: Department of Mammology, American Museum of Natural History, New York, NY 10024. Rattus nativitatis (Thomas, 1889) Bulldog Rat † Mus nativitatis Thomas, 1889c: 533.

La rata bulldog (Rattus nativitatis) fue una especie de rata endémica de la Isla de Navida en el Océano Índico, ya extinta.

Rattus nitidus e Mottle-tailed Rat; Mottle-tailed Cape York Rat; Cape York Rat; Whitefooted Spiny Rat. Rattus nativitatis Rodentia – Muridae e Bulldog . The rats lived on the higher hills and denser . It is assumed that black rats brought the pathogen to these immunologically naïve species; both Rattus macleari and R. Rattus nativitatis in Mammal Species of the World.