Are These Corydoras Eggs Or Snail Eggs

[snazy]

They spawned again today, but the eggs were eaten instantly by the guppies and platies. It was funny watching one of the guppy fry with an egg stuck to it's nose flying around the tank trying to get rid of it
I only managed to save 3 eggs

I think that they may be spawning more often, but get eaten and I don't notice it, as I always happen to see the eggs when I am off work