Identification:
Similar species: Metridium senile
Breeding:
Basal laceration.
Habitat:
Today we were lucky enough to dive on the Indiana
(Orange wreck) 1 mile south from Worthing Pier.
On one part of the scattered wreckage, a 3 m
x 15 cm pole/pipe sticks up at about 30 degrees from the seabed. It is
the only part of the wreck that I found groups of "Diadumene cinta".
The pole is very exposed and the densest groups were found on the underside.
They were amongst a turf of sponge, algae and hydroids.
I measured one of the largest anemones tentacle
span = 5mm diameter. Their appearance is a slightly translucent, fawn coloured
column with orange lines running it's length. The tentacles and disc are
just as my previous photo's show. The white circular band was present on
all the anemones and the mouth is orange. Some of these anemones were fully
contracted. Their shape is very flat and wide, almost disc like. The orange
lines all run from the base (outside edge) to the centre. No "collar" visible
on any anemones. I gently touched the tentacles to see their response.
Each anemone slowly rolled-in the touched tentacles just as you would roll
your fingers into your palm. I am unsure what a jerky movement may be but
these anemones responded similar to the movement of a snakelocks which
I also studied today.
Water temp was 7° C Does the temperature
effect their movements?
Viz. was 3-4 m in 7.5m depth.
I hope these details can be of help.
Any other details should I have recorded?
Best wishes
Paul
Parsons
Diadumene cincta is recorded at numerous
locations especially in the English Channel on the Mermaid (MNCR) database.
http://www.jncc.gov.uk/mermaid/
11
June 2001
 Under
the sea, Paul Parsons returned from a brief foray with a handful of very
small Actinothoe
sea anemones, a small sea hare Elysia
viridis, and some other very small
orange anemones with whitish orange tentacles. After close study I can
confirm that these are the often overlooked Diadumene
cincta. The mouth is orange in some specimens, but the most
useful diagnostic difference from the similar Plumose
Anemones is their instant jerky reaction when touched.
Under
Worthing Pier (Page 3)
 3
February 2001
The
sea anemone Diadumene cincta
has been identified and photographed by Paul
Parsons off Worthing at a depth of 3 metres and they possibly occur
off Shoreham as well. It is a small sea anemone that has probably overlooked
before or incorrectly identified. The colony found was very small. It needs
to be picked out amongst the background of the Lightbulb
Sea Squirts, Clavelina lepadiformis.
Photographs
Sea
Anemones (Link)
It is NOT a familiar species for rockpoolers.
Position: 50 49.00'N 00 11.99'W Dredger
wreck 5 - 10 metres depth.
http://www.jncc.gov.uk/mermaid/scripts/mncrdb.dll/habitat?samplekey=18557
August/September 2003 and earlier years
Occurs on the Brooklands outfall pipe, Lancing/Worthing
border, West Sussex.
Paul
Parsons
Food:
Range:
Additional Notes:
News Item 2001
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:
Shorewatch
Project EMail Glaucus@hotmail.com.
All messages will receive a reply.
Cnidaria
Web Site (World)
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