help me identify these eggs I found

I’ve been lifting my early potatoes down at the allotment today and I happened to unearth a little cache of what appear to be some sort of eggs.

They are about 3 to 4mm in diameter, almost perfectly spherical, pure white, but slightly translucent, and feel rubbery but not sticky or slimy.

there were about 30 of them and they were about an inch or so beneath the surface, but as I didn’t notice them until I’d unearthed them, I’ve no idea whether there was any kind of burrow.

I live near the south coast of England, my guesses for what might have left them:

Lizard: we do have lizards here, but they are exceptionally rare in my area (I’ve never actually seen one in this part of the country), but I think the most common species would be the vivaparous(sp?) lizard, which bears live young (there is a subsp of this which lays eggs, but further north still)

Beetle: the stag beetle would be about the only species large enough (I would think) to be able to lay eggs of this size and qty, but I’m not sure what beetle eggs look like.

slug: again not sure about this one, what do slug’s eggs look like?

Any other suggestions? (I appreciate that most dopers are from the US, but maybe you can shed some light)

Snake eggs, maybe?

Sounds like slug eggs to me.

We only have two native snakes; the adder and the grass snake, both of these bear live young in Britain.

I did a bit of googling (‘4mm white eggs Britain’) and I’m pretty sure now that they are snail or slug eggs.

Given the abundance of slugs and snails, I’m very surprised I don’t find the eggs more often.