Syn.: intertidal.
Acoetidae (Family) Kinberg, 1856
Aphroditidae (Family) Malmgren, 1867
Arenicolidae (Family) Johnston, 1835
Capitellidae (Family) Grube, 1862
Eulepethidae (Family) Chamberlin, 1919
Ophelia (Genus) Savigny, 1818
Opheliidae (Family) Malmgren, 1867
Paraonidae (Family) Cerruti, 1909a, nom. cons.
Pholoidae (Family) Kinberg, 1858
Questa (Genus) O. Hartman, 1966
Sigalionidae (Family) Kinberg, 1856
Alderina flaventa Dick et al., 2006
Bryopesanser serratus Dick et al., 2006
Calyptotheca kapaaensis Dick et al., 2006
Corbulella extenuata Dick et al., 2006
Cribellopora souleorum Dick et al., 2006
Disporella compta Dick et al., 2006
Favosipora adunca Dick et al., 2006
Junerossia copiosa Dick et al., 2006
Megastygarctides christinae H.J. Guldberg & R.M. Kristensen, 2006
Megastygarctides gerdae H.J. Guldberg & R.M. Kristensen, 2006
Metacleidochasma verrucosa Dick et al., 2006
Phoronida (Phylum) Hatschek, 1888 - phoronids
Polyplacophora (Class) Blainville, 1816 - chitons
Puellina septemcryptica Dick et al., 2006
Tardigrada (Phylum) (Spallanzani, 1777) Ramazzotti, 1962 - tardigrades