Cluster of eggs?

Cluster of eggs?

Observation - Cluster of eggs? - UK and Ireland. Description: A clump of about four spherical objects, off-white in colour and each 2mm-4mm diameter. Located just below high-tide level on an Enteromorpha-covered rock. These might perhaps be the eggs of some shore-dwelling creature - has anybody any suggestions or in

A clump of about four spherical objects, off-white in colour and each 2mm-4mm diameter. Located just below high-tide level on an Enteromorpha-covered rock. These might perhaps be the eggs of some shore-dwelling creature - has anybody any suggestions or information please?