Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Balanus barnacles

Balanus perforatus


Balanus perforatus is a species of barnacle in the family Balanidae, and it is one of the commonest barnacles in Greece. The species is is a large barnacle which grows up to 30 millimetres in both diameter and height. Its shape resembles a volcano with steep sloping sides. The six fused lateral calcareous plates are pale purplish-brown and often ridged vertically. They often separate near the top leaving jagged ridges. Tissue inside the operculum is brightly coloured. Two pairs of moveable plates cover the operculum which can be sealed by a purplish-brown flap when the barnacle is exposed above water or it is not feeding.[(wiki) These barnacles were spotted while been attached in a thin piece of wood, probably a stem, in Karnagio shipyards, Pefkakia, Volos city, Greece.

Species ID Suggestions

Sign in to suggest organism ID

No Comments

Βόλος, Αποκεντρωμένη Διοίκηση Θεσσαλίας - Στερεάς Ελλάδας, Greece

Spotted on May 22, 2016
Submitted on May 24, 2016

Related Spottings

Barnacle Amphitrite's rock barnacle Acorn barnacle Bay barnacle

Nearby Spottings

Articulate monodont Watersipora encrusting bryozoan Erect prickly pear opuntia (Φραγκοσυκιά) Carabus Greek Beetle


Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team