Help Identity these please...

[TexasBurnsy]

I found these 2 groups of what appear to be eggs of some sort. They are about half the size of your pinky fingernail and in 2 rows. They were not there a week ago - and suddenly have appeared in my mixed reef tank. Anyone help me!?! Thanks

 

[tbrown]

Those are whelk eggs I believe.

 

[ISpeakForTheSeas]

I found these 2 groups of what appear to be eggs of some sort. They are about half the size of your pinky fingernail and in 2 rows. They were not there a week ago - and suddenly have appeared in my mixed reef tank. Anyone help me!?! Thanks

Any chance you've got a crown conch or similar, larger snail?