learn only 3 things about them ...
They are found among the coral rubble. Don't step on them!
Don't remove any fishes or shrimps that live in the sea
anemone. They will die and the anemone will also suffer.
poke the sea anemone to make fishes or shrimps come out.
They will instead hide deeper in the anemone.
seen? This stunning, large anemone is well named. It is
sometimes seen on our Southern shores,
attached to large boulders of dead coral or other solid objects, usually
in deeper waters. It is rarely buried in sand or sediments. Several
of these anemones may be found next to one another.
anemone was previously known as Radianthus ritteri.
when expanded 30-50cm, but can reach 1m.
Body column uniformly coloured. Those seen were white, pink, maroon,
purple. The body column has longitudinal rows of translucent verrucae
of the same colour or slightly lighter or darker than the body column.
Long tentacles (5-8cm) densely cover the oral disk. The tentacles
are finger-like and do not taper. The tips are blunt or slightly swollen.
The lower part of the tentacles are usually the same colour as the
oral disk. Tips may be yellow, green or white. It is said that the
mouth area of 2-3cm in the centre of the oral disk is usually yellow,
brown or green and the mouth
is often raised so it sits on a cone. But
this has not been observed for those seen at low tide. The animal
can tuck all its tentacles into its body column, forming a ball-shape
with only tufts of tentacles sticking out in the centre.
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
Magnificent friends: The
Magnificent 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 Magnificent anemone. These include Anemone
shrimps like the Five-spot
anemone shrimp (Periclimenes brevicarpalis) and fishes
such as Dascyllus trimaculatus and anemonefishes
including A. akallopisos, A. bicinctus, A. clarkii, A. nigripes,
(False clown anemonefish), A. percula, A. perideraion, A. xanthurus.
Status and threats: Magnificent
anemones are not listed among the endangered animals of Singapore.
However, like other creatures of the intertidal zone, they are affected
by human activities such as reclamation and pollution. Trampling by
careless visitors, and over-collection also have an impact on local
The animal can tuck its tentacles
into its body.
Kusu Island, May 04
Long tentacles densely cover the oral disk.
Different shaped tentacles
Pulau Semakau, Apr 11
Terumbu Semakau, Jun 10
Pulau Hantu, Jan 10
Pulau Hantu, Feb 08
Terumbu Pempang Tengah, Apr 12
anemones on Singapore shores
photos of magnificent anemones on Singapore shores