Dendropoma corallinaceum is a gregarious species which forms clusters of white, irregular tubes up to 3 mm (0.1 in) in diameter and 10 mm (0.4 in) in length, often embedded into the thin layer of coralline algae covering the rocks.

[1] It may form large sheets near low tide mark on exposed rocky shores.

When sufficiently mature, the protoconch crawls out of the tube and uses a sticky trail of mucus to avoid being swept away.

It prefers to settle on the coralline alga Lithothamnion in which it can easily cut a groove with its radula.

It secretes a mucus net which ensnares food particles from the surrounding water and is periodically wound up and swallowed by the snail.