Diphyidae

The Diphyidae are a family of siphonophores. These are colonial siphonophores with two nectophores arranged one behind the other. The front one includes a somatocyst, while the hind one does not. The somatocyst often contains an oil droplet for buoyancy control. A nectosac in each nectophore allows the organism to swim efficiently.

Systematics

The World Register of Marine Species includes the following taxa in the family Diphyidae:

Subfamily Diphyinae Quoy & Gaimard, 1827
* Genus Chelophyes Totton, 1932
** Chelophyes appendiculata
** Chelophyes contorta
* Genus Dimophyes Moser, 1925
** Dimophyes arctica
* Genus Diphyes Cuvier, 1817
** Diphyes antarctica Moser, 1925
** Diphyes bojani
** Diphyes chamissonis Huxley, 1859
** Diphyes dispar Chamisso & Eysenhardt, 1821
* Genus Eudoxoides Huxley, 1859
** Eudoxoides mitra
** Eudoxoides spiralis
* Genus Lensia Totton, 1932
** Lensia achilles Totton, 1941
** Lensia ajax Totton, 1941
** Lensia asymmetrica Stepanjants, 1970
** Lensia campanella
** Lensia challengeri Totton, 1954
** Lensia conoidea
** Lensia cordata Totton, 1965
** Lensia cossack Totton, 1941
** Lensia exeter Totton, 1941
** Lensia fowleri
** Lensia gnanamuthui Daniel & Daniel, 1963
** Lensia grimaldii Leloup, 1933
** Lensia hardy Totton, 1941
** Lensia havock Totton, 1941
** Lensia hostile Totton, 1941
** Lensia hotspur Totton, 1941
** Lensia hunter Totton, 1941
** Lensia leloupi Totton, 1954
** Lensia lelouveteau Totton, 1941
** Lensia meteori
** Lensia multicristata
** Lensia panikkari Daniel, 1971
** Lensia quadriculata Pages, Flood & Youngbluth, 2006
** Lensia subtilis
** Lensia subtiloides
** Lensia zenkevitchi Margulis, 1970
* Genus Muggiaea Busch, 1851
** Muggiaea atlantica Cunningham, 1892
** Muggiaea bargmannae Totton, 1954
** Muggiaea delsmani Totton, 1954
** Muggiaea kochii
Subfamily Giliinae Pugh & Pages, 1995
* Genus Gilia Pugh & Pages, 1995
** Gilia reticulata
Subfamily Sulculeolariinae Totton, 1954
* Genus Sulculeolaria Blainville, 1830
** Sulculeolaria biloba
** Sulculeolaria chuni
** Sulculeolaria monoica
** Sulculeolaria quadrivalvis de Blainville, 1830
** ''Sulculeolaria turgida''