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Yes, again, WebReferencing allows agreement.
A nic(er) picture here http://www.parlouraquariums.org.uk/galleryPages/TenbyPages/tenby4.html
And here listed as "... plain orange and the tentacles are white."
Gosse (1860) - see http://www.ispot.org.uk/node/347374#comment-120212 describes it as "wholly of a most brilliant orange"..."...Tentacles pure white, without markings"
I love my Gosse book..the plates are astounding!
Lat/Lng: 51.5644, -4.3309
OS grid ref: SS385876