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Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Actiniaria
Leathery anemone
Heteractis crispa
Family Stichodactylidae
updated Oct 2016
Where seen? This large sea anemone is sometimes, among living reefs. According to Dr Fautin, it is sometimes seen living on branching corals.

Features: Diameter expanded 20-30cm, up to 50cm when fully expanded. Many long tentacles (about 10cm) that are snake-like, evenly tapered to a point often with coloured tips: mauve, blue, sometimes yellow or green. The tentacles may shrivel if the animal is disturbed. Body column with large, prominent, adhesive bumpy verrucae. The body column texture is leathery and it is uniformly coloured, usually grey. The oral disk is usually brownish violet or grey, rarely bright green, sometimes with white stripes.

Sometimes confused with other large sea anemones and similar large cnidarians. Here's more on how to tell apart large sea anemones with long tentacles and large 'hairy' cnidarians.

Leathery friends: The Leathery anemone harbours symbiotic algae (called zooxanthellae) that photosynthesize. The algae share the food produced with the anemone, which in turn provides the algae with shelter and minerals. Several kinds of animals may live happily among and unharmed by the tentacles of the anemone. These include the Five-spot anemone shrimp (Periclimenes brevicarpalis) and fishes such as Dascyllus trimaculatus and many species of anemonefishes.

Beting Bemban Besar, Apr 10


Tentacles may have coloured tips.

An anemone shrimp was seen in this one.

Typical bumpy prominent verrucae
on the body column.

Leathery anemones on Singapore shores

Photos of Leathery anemones for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map


Kusu Island, Jun 10
Photo shared by Loh Kok Sheng on his blog.

Kusu Island, Jun 10
Photo shared by Loh Kok Sheng on his blog.

Kusu Island, May 10
Photo shared by Marcus Ng on his flickr.


Pulau Jong, Jun 12
Photo shared by Loh Kok Sheng on his blog.

Pulau Tekukor, May 10
Photo shared by Loh Kok Sheng on his blog.

Pulau Tekukor, Jun 16
Photo shared by Ian Siah on facebook.


Beting Bemban Besar, May 11
Photo shared by Loh Kok Sheng on his blog.

Terumbu Bemban, Apr 11

Photo shared by Russel Low on facebook.

Terumbu Bemban, Jul 11

Photo shared by Loh Kok Sheng on his blog.


Terumbu Semakau, Jun 10
Photo shared by Toh Chay Hoom on her blog.

Bleaching.


Terumbu Semakau, Jun 10
Photo shared by Loh Kok Sheng on his blog.

Beting Bemban Besar, May 10
Photo shared by Marcus Ng on flickr.


Pulau Semakau, Aug 07

Photo shared by Loh Kok Sheng on his flickr.

Pulau Semakau, Jan 09
Photo shared by Marcus Ng.

Terumbu Raya, Mar 09

Photo shared by Loh Kok Sheng on his flickr.


Terumbu Raya, Jun 15

Photo shared by Loh Kok Sheng on his blog.

Pulau Senang, Jun 10

Photo shared by Loh Kok Sheng on his flickr.

Pulau Senang, Jun 10
Photo shared by Loh Kok Sheng on his flickr.

Links

References

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