There are two separate but similar island hog deer species: The Bawean deer (H. kuhlii) of Bawean Island in Indonesia, and the Calamian deer (H. calamianensis) of the Calamian Islands in the Philippines that inhabit moist or dry tropical deciduous forest environments.
Unlike the best known western populations of the hog deer (A. porcinus), their fawns are not spotted at birth.
However, the eastern populations (perhaps equalling the subspecies A. p. annamiticus) of the hog deer also have unspotted fawn.
The two island hog deer may be remnants of a widespread population of hog deer that at one time were connected to the hog deer populations of mainland Southeast Asia and inhabited vast areas of the Sunda Shelf during times of lower ocean levels.

Traditionally there have been two classified subspecies of hog deer: Indian hog deer (Hyelaphus porcinus porcinus) and the Indochinese hog deer (Hyelaphus porcinus annamiticus).
However recent morphological studies indicate they are better off as two separate species.
There are two separate but similar island hog deer species: The Bawean deer (H. kuhlii) of Bawean Island in Indonesia, and the Calamian deer (H. calamianensis) of the Calamian Islands in the Philippines that inhabit moist or dry tropical deciduous forest environments. Unlike the best known western populations of the hog deer (A. porcinus), their fawns are not spotted at birth. However, the eastern populations (perhaps equalling the subspecies A. p. annamiticus) of the hog deer also have unspotted fawn. The two island hog deer may be remnants of a widespread population of hog deer that at one time were connected to the hog deer populations of mainland Southeast Asia and inhabited vast areas of the Sunda Shelf during times of lower ocean levels.
Traditionally there have been two classified subspecies of hog deer: Indian hog deer (Hyelaphus porcinus porcinus) and the Indochinese hog deer (Hyelaphus porcinus annamiticus). However recent morphological studies indicate they are better off as two separate species.
Indian hog deer