Ectopleura larynx, or ringed tubularia, is a hydroid in the family Tubulariidae.

[1] Ectopleura larynx forms colonies that are usually no more than 6 centimetres (2+1⁄2 inches) high.

The polyp colour is pale pink through to red, and consists of a central circlet of oral tentacles surrounded by paler but larger aboral tentacles[3][full citation needed]E. larynx is found throughout the British Isles and is common in the Northern Atlantic Ocean.

[5] It is most common in shallow water, fouling piers and on the undersides of boats; in the British Isles, seas surrounding Great Britain, and the Americas.

E. larynx grows in colonies and can tolerate exposed habitats and strong water currents.