File:Skull MaclearsRat BulldogRat.png

English: Plate II from A monograph of Christmas Island (Indian Ocean). It shows the skulls of the Maclear's Rat (Rattus macleari) and the Bulldog Rat (Rattus nativitatis), two recently extinct rat species from Christmas Island (Australia). The Maclear's Rat (Mus macleari): Figs. 1, 3, 6, 7, 8. The Bulldog Rat (Mus nativitatis): Figs. 2, 4, 5, 9, 10. Figs. 1 and 2, cranium from above; Figs. 3 and 4, from below; Figs. 5 and 6, side view with lower jaw; Figs. 7-9, right upper molar series; Figs. 8 and 10, right lower molar series. Figs. 7-10 X 4; the others natural size.