Tag: Elephant's Ear Anemone (Amplexidiscus fenestrafer)

The Elephant's Ear Anemone (Amplexidiscus fenestrafer) is the largest species of Corallimorpharia and is fairly common in local waters, particularly so at offshore sites such as Sail Rock.

Growing to a diameter of up to 50cm, this anemone is easily identified not only by its size, but also by its flattened, disk-like appearance with short, evenly spaced tentacles.

The margin around the outer edge of the disk lacks tentacles, instead having parallel ridges that radiate outwards towards the edge of the disk.

Colouration varies from green, to various shades of brown, with the light brown variation probably being the most commonly seen locally.

The Elephant's Ear Anemone feeds by immobilizing its prey (consisting mainly of small fish) with its stinging tentacles, before forming a ball and maneuvering it towards the mouth at the center of the disk.

The Elephant's Ear Anemone (Amplexidiscus fenestrafer) is the largest species of Corallimorpharia and is fairly common in local waters, particularly so at offshore sites such as Sail Rock.

Growing to a diameter of up to 50cm, this anemone is easily identified not only by its size, but also by its flattened, disk-like appearance with short, evenly spaced tentacles.

The margin around the outer edge of the disk lacks tentacles, instead having parallel ridges that radiate outwards towards the edge of the disk.

Colouration varies from green, to various shades of brown, with the light brown variation probably being the most commonly seen locally.

The Elephant's Ear Anemone feeds by immobilizing its prey (consisting mainly of small fish) with its stinging tentacles, before forming a ball and maneuvering it towards the mouth at the center of the disk.

Alan's picture
Elephant's Ear Anemone (Amplexidiscus Fenestrafer)

This photograph, taken at Sail Rock, shows the underside of an Elephant's Ear Anemone (Amplexidiscus Fenestrafer) and its method of attaching itself to a suitable surface by means of a powerful pedal disk or "foot" as it is more commonly known.

Alan's picture
Elephant's Ear Anemone (Amplexidiscus Fenestrafer)

This photo shows the characteristic parallel ridges which form a margin around the flat, tentacle-covered disc of the Elephant's Ear Anemone (Amplexidiscus Fenestrafer).

Alan's picture
Elephant's Ear Anemone (Amplexidiscus Fenestrafer)

This photo shows an Elephant's Ear Anemone (Amplexidiscus Fenestrafer) forming a characteristic ball.

This would suggest that the anemone has caught a prey item (most likely a small fish) within its stinging tentacles and is in the process of maneuvering it towards the central mouth.