Tubularia indivisa Linnaeus, 1758

Description

Tubularia indivisa is a large hydroid reaching 10 to 15 cm in height. Living in small clumps, the unbranched stems, gathered at the base, are pale horn coloured and bear a single pale pink polyp. The tentacles form two concentric circles: those of the external circles are longer than those of the oral one. In Spring (mostly), reddish-pink gonothecae grow between the tentacles. There is no medusa released. It lives attached to rocks, or sometimes among seaweeds' haptera in current-swept areas.

Distribution

Tubularia indivisa lives in the North-East Atlantic Ocean, the English Channel, the North Sea and the Norwegian Sea.

Classification

Source : World Register of Marine Species

Biota (Superdomain)
Animalia (Kingdom)
Cnidaria (Phylum)
Hydrozoa (Class)
Hydroidolina (Subclass)
Anthoathecata (Order)
Aplanulata (Suborder)
Tubulariidae (Family)
Tubularia (Genus)
Tubularia indivisa (Species)

Page glossary

Gonotheca : part of the hydroid producing gametes and where eggs are incubated till the lava is released.

Authors

Text : Wilfried Bay-Nouailhat © 2006 - 2020.

Photos : © Wilfried Bay-Nouailhat. Published with his kind permission.
Websites and reference works : Consult bibliography

How to cite this page

Bay-Nouailhat W., september 2006, Description of Tubularia indivisa, [On line] http://www.european-marine-life.org/05/tubularia-indivisa.php, consulted on 2020 September 18.