White & orange are the usual colours.
Small brown specimens occur.
This anemone has 'catch tentacles'.
Similar species: Diadumene
Food: Small planktonic organisms,
and occasionally dead organisms and jellyfish if they are propelled into
the anemones by strong currents. Larvae of all sorts.
See Aquarium Husbandry below
Northern hemisphere, temperate seas, Atlantic
The common name Plumrose is wrong and arose because of typset error
in an old book.
The small variant pallidus is alleged to be a different species.
It certainly looks different at times and never grows to a large size,
but otherwise behaves in an identical way.
Eco-types, genetically isolated races of this anmone may occur. Some
may have a greater ability to survive in anoxic conditions. (Shick,
Because its diet is almost exclusively very small
organisms this anemone can be tricky to feed in aquaria. The nematocysts
will activate at the presence of live food in the aquaria, plankton, freshly
hatched brine shrimp Artemia, and then the anemone will ingest large
food particles e.g. pieces of boiled mussel.
Feeding in Sea
One unusual record was of a group of Metridium
on an underwater cliff face that appeared to have captured an Aurelia,
possibly a dying one that had drifted onto them. The grip by the
colony was firm enough to hold it against water being wafted across it
by a diver's hand. Presumably individuals were feeding but I cannot
be sure of that.
Report by Michael Bates (Port
Erin Marine Laboratory, Isle of Man)
NB: Records of Plumose Anemomes, Metridium
senile, feeding on jellyfish on all the
venomous species received before on several occasions. AH.
Loch Fyne (External Site)
Message to the Cnidarian Worldwide Forum
28 November 1999
Catch Tentacles in Metridium senile
My research indicated that dissection of Metridium
senile failed to discover separate "catch tentacles". Now, anybody
who has any experience of this anemone (English Channel specimens) will
1) catch tentacles appear on certain occasions
2) introduction of plankton, brine shrimp,
fresh seawater can (not always) induce the appearance of the "catch tentacles"
in this species.
Certain hypotheses can be thought up from these
observations. However, further information would be useful.
The questions are:
1) are "catch tentacles" regularly found in pickled
specimens of Metridium senile?
2) what distinguishes the "catch tentacles" in
dissected specimens from the ordinary tentacles (apart from the length
If anybody has investigated this anemone and knows
the answers to these questions, I would be very interested. It will help
formulate a description of what happens. I might even be able to suggest
a reason why. (I have already thought up the reason and now I have to check
Gosse christened this anemone PLUMOSE which is
widely (almost 100%) used in the UK and it is a very apt and attractive
Link to Replies
Information wanted: Please send any records of this sea anemone,
with location, date, who discovered it, how it was identified, prevalence,
common name and any other details to:
Web Site (World)
Shorewatch Project EMail Glaucus@hotmail.com.
All messages will receive a reply.