|The family Eubranchidae
includes small aeolids that often have lumpy or ringed cerata.
They feed on hydroids and are usually found on their food. Egg masses
are usually deposited on the hydroid and are often easier to see than
the animals. Some produce acidic secretions from glands in the tips of
their cerata. There are at least nine species known from Hawaii, all
the genus Eubranchus.