The intertidal spiders (family Desidae) are named for the genus Desis, members of which live in a very unusual location — between the tides. The family has been reevaluated in recent years and now includes inland genera and species as well, such as Badumna and Phryganoporus. Those intertidal spiders that are truly marine commonly live in barnacle shells, which they seal up with silk; this allows them to maintain an air bubble during high tide. They emerge at night to feed on various small arthropods that live in the intertidal zone.

Genera

As of January 2016, the World Spider Catalog accepted the following genera:

Badumna Thorell, 1890 (Australasia, United States, Paraguay)
Canala Gray, 1992 (New Caledonia)
Cicirra Simon, 1886 (Tasmania)
Colcarteria Gray, 1992 (Australia)
Desis Walckenaer, 1837 (Africa, Japan, India, Australasia, Galápagos)
Epimecinus Simon, 1908 (Australia, New Caledonia)
Forsterina Lehtinen, 1967 (Australia, New Caledonia)
Gasparia Marples, 1956 (New Zealand)
Gohia Dalmas, 1917 (New Zealand)
Goyenia Forster, 1970 (New Zealand)
Hapona Forster, 1970 (New Zealand)
Helsonia Forster, 1970 (New Zealand)
Hulua Forster & Wilton, 1973 (New Zealand)
Laestrygones Urquhart, 1894 (New Zealand, Tasmania)
Lamina Forster, 1970 (New Zealand)
Lathyarcha Simon, 1908 (Australia)
Mangareia Forster, 1970 (New Zealand)
Matachia Dalmas, 1917 (New Zealand)
Mesudus Özdikmen, 2007 (New Zealand) - replacement name for Manawa Forster, 1970
Myro Pickard-Cambridge, 1876 (Tasmania, New Zealand)
Namandia Lehtinen, 1967 (Tasmania)
Neomyro Forster & Wilton, 1973 (New Zealand)
Notomatachia Forster, 1970 (New Zealand)
Nuisiana Forster & Wilton, 1973 (New Zealand)
Ommatauxesis Simon, 1903 (Tasmania)
Otagoa Forster, 1970 (New Zealand)
Panoa Forster, 1970 (New Zealand)
Paramatachia Dalmas, 1918 (Australia)
Paratheuma Bryant, 1940 (United States, Oceania, Korea, Japan)
Phryganoporus Simon, 1908 (Australia)
Pitonga Davies, 1984 (Australia)
Porteria Simon, 1904 (Chile)
Rapua Forster, 1970 (New Zealand)
Syrorisa Simon, 1908 (New Caledonia, Australia)
Taurongia Hogg, 1901 (Australia)
Toxops Hickman, 1940 (Tasmania)
Toxopsoides Forster & Wilton, 1973 (New Zealand)
Tuakana Forster, 1970 (New Zealand)

source - Wikipedia

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