I was bottom fishing in the Mabacan River in Laguna and caught this soft shelled turtle.  The river is full of these turtles which stay along the bottom of the river and periodically come to the surface for air.  I have unintentionally caught them on worms, chicken liver, chicken skin, and doughballs.  These turtles take a variety of bait and have a tendency to swallow the hook.  They can be difficult to unhook, but pliers help.  I am not sure what species these are.