Aquatic eggs

Aquatic eggs

Observation - Aquatic eggs - UK and Ireland. Description: Found the other morning on one of the garden pond plants. There are eight frogs in the pond but this doesn't look like the normal frog spawn. Neither does it appear to be toad spawn. Suggestions gratefully received They are very strange - the ones in th

Found the other morning on one of the garden pond plants. There are eight frogs in the pond but this doesn't look like the normal frog spawn. Neither does it appear to be toad spawn.
Suggestions gratefully received
They are very strange - the ones in the left photo do appear to have embryos in the centre, but the one's in the right photo just have the appearance of grey cotton wool. Sorry but I can't think of any other description.
I'm totally baffled and I'm not inexperienced when it comes to identifying things wildlife