Adults reach a shell length of up to around 9 inches.
Habitat and Distribution
This species is found in lowland hill rain forest areas near streams and ponds. In such habitat it can be found in Brunei, Indonesia, Malaysia, the Philippines and Thailand.
This species likely lives for around 50 years or more.
The majority of their diet is vegetarian including vegetable matter, leaves, grasses and fruits, however they do sometimes also supplement their diet with animal or insect matter.
Groups and Breeding
These turtles lay relatively large eggs near rivers in shallow nests. Due to the size of these eggs they usually only lay one or two eggs at a time, which hatch after 110 to 145 days. Females may produce up to 3 clutches of eggs per year.
This species is Endangered in the wild. Part of the reason for this is the rapid deforestation of its natural habitat, especially in Indonesia and Malaysia, but also that it is very commonly caught and sold at markets for food.
Due to the sharp points which are made up by the scales along the edge of its shell, this species is also sometimes called the cog wheel turtle.