Scale, I:6,500,000 English Miles o 21, 80 Boundaries of Provinces Capitals of Provinces Railways pat Basilan 6 N47WVANE**,,X .
Red or brown deer occur in Basilan, Mindanao, Leyte, Samar and the Calamianes Islands.
Squirrels are confined to the eastern chain of islands from Basilan to Samar and to the Palawan-Calamianes group. In the southern islands there is a tiny species, the size of a mouse.
Galeopithecus and Tarsius range from Basilan to Samar; the former occurs also in Bohol.
These genera usually have distinct representative species in Luzon, Samar and Leyte, Mindanao, and in some cases in Basilan also.
Sulu and Tawi Tawi belong zoologically to the Philippines, but have 12 well-marked peculiar species, and many of the characteristic Mindanao-Basilan forms are lacking.
More than one-half of them are in Mindanao and they are the principal inhabitants of the small islands of Jolo, Basilan, Siassi and Tawi Tawi south-west of Mindanao.
Numerous genera and some families which are absent from the central islands range from Luzon to Basilan.