I seem to remember being told at the time that this was M. madagascariensis, but M. baroni also occurs in the area. I didn't know you needed a ventral view to get a 100% ID. My impression is that this is better for M. baroni, though.
Probably its clutch
sp. aff. biporus “Ambohitantely”
Individual in a tiny puddle (with tadpoles) near a stream