I created a new world in the 14w02b snapshot.

here is the seed: -2124546697723379090

I found a jungle temple in the jungle where I spawned but after moving out of the jungle, I found more jungle temples. There was one in the desert and one in the ocean. Furthermore, I also found one half way between a savanna and a jungle ledge biome with the middle in the savanna part (not sure if it counts). After quitting the world(but not Minecraft) and going back, I flew around with creative but I did not found more.

I believe it may have stopped the spawning after I closed the world.
I also attached screenshots with coordinates where I found the desert and ocean ones.