Dear Conch-L..ers, You may be surprised to know that towards the end of a 
warm summer we occasasionally find Janthina janthina on the southernmost
tip of Ireland, courtesy, I presume of Gulf Stream Travel.   I found about
a dozen one morning after a storm on the beach beside Waterville Golf Club.
 A few years later   I was told by Dr Dai Roberts (Queens University
Belfast), that one of my finds was in fact a Janthina pallida, which had
been mentioned by Nora McMillan in her book 'British Seashells', but it had
not been  recorded since.  Stanley Francis.