Avril, The live animals are goose barnacles. These often attach to floating objects at sea. The gastropods are a mixed bag. The smooth ones with crystals or agate inside (1,2,3,5 and 8) look like Physa, a common, fossil and recent genus of left handed fresh water shells. They are possibly too big to be in that genus. The two (shells 4 and 6) that look like Busycon are probably Florida Pliocene fossils. The presence of an other unrelated, Recent shell ( 7, which is not sinistral anyway) implies a 'collection' from multiple sources, not all local. Allen Aigen [log in to unmask] -- Avril Bourquin <[log in to unmask]> wrote: Hello Conchlers, I have two new mystery pages that need your assistance in identification; 1. a Mystery UK live critter at: http://www.manandmollusc.net/Mystery_shell_pages/craig-mystery.html and 2. Sinistral fossil gastropods at: http://www.manandmollusc.net/Mystery_shell_pages/gunnar-mystery.html Any and all help identifying these molluscs will be appreciated. Thanks! All the best,Avril Bourquin Avril Bourquin PO Box 366 Invermere, B.C. Canada V0A 1K0 Phone & Fax: (250) 342-7224 Email: [log in to unmask] WebSites: http://www.manandmollusc.net http://www.directory.manandmollusc.net/molluscs/