Again I don't know the English names... :-D is this platysternon megacephalum?
Correct. Not to be confused with Erymnochelys madagascarensis (wonder how much I butchered that, haha), which is also called "Big-headed turtle".
Wonder which sub-species?
You only missed an I.
No, I do not know for sure what she is, still figuring that one out. They are really cool to watch.Ha! I'm getting good at this! .
So which sub-species? Or do you not know? I was pretty sure I've heard of there being at least one sub-species, but perhaps I am wrong.