trudy-russell's picture

Snakelock Anemone

Observed: 11th August 2009 By: trudy-russelltrudy-russell’s reputation in Invertebratestrudy-russell’s reputation in Invertebratestrudy-russell’s reputation in Invertebrates

Common rocky shore species found near the low water mark as they dont like to spend time out of water.

Species interactions

No interactions present.

Species with which Snakelock anemone (Anemonia viridis) interacts


bobthebirder's picture


Nice photos showing both colour forms. The green ones must get extra energy from their symbiotic algae, and yet the grey-pink ones usually seem to be bigger. Have you noticed this Trudy?

Bob Ford

the naturalist man's picture


The green colouration is due to a green fluorescent protein called asFP595. Its purpose is to protect the animal's cells from harmful UV light. Therefore, those animals in shallow water exposed to UV light will be green and those in more shaded areas will be pale grey. This protein can be switched 'on' (green) or 'off' (grey).

Perhaps the pay off is you need shorter tentacles to feed in exposed, shallow water?

These animals have a neat way of reproducing, they just split into two identical halves, known as longitudinal fission.

Graham Banwell

Visit the iSpot Yorkshire forum for information on events, issues and news relating to 'God's own country'