The family Limapontiidae
(referred to as Stiligeridae in some sources) includes
shell-less species that usually have prominent cerata containing
branches of the digestive gland. Most have rolled rhinophores
distinguishing them from the similar-appearing aeolid nudibranchs. They
feed on green algae with the exception of a few that specialize in
eating the eggs of other opisthobranchs. Most are diurnal, though
seldom seen due to their small size. Some authors place the genus Costasiella in a separate family,
the Costasiellidae. At least 22 species are found
in Hawaii in five genera (Costasiella,
Ercolania, Placida, Sacoproteus and Stiliger).
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