Diphyidae

Diphyidae
Diphyes sp. from the Black Sea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hydrozoa
Order: Siphonophorae
Suborder: Calycophorae
Family: Diphyidae
Quoy & Gaimard, 1827[1]
Genera
See text

The Diphyidae are a family of siphonophores. These are colonial siphonophores with two nectophores (swimming bells) arranged one behind the other. The front one includes a somatocyst (extension of the gastrovascular system), while the hind one does not. The somatocyst often contains an oil droplet for buoyancy control. A nectosac (central cavity with muscular walls) in each nectophore allows the organism to swim efficiently.[1]

  1. ^ a b Schuchert, Peter (2015). "Diphyidae Quoy & Gaimard, 1827". WoRMS. World Register of Marine Species. Retrieved 2015-04-15.