On a snail, on ommatophore is a stalk with this at the end
[DOC] [TLE] eyestalk - Memidex dictionary/thesaurus [PAR] Eyestalk | eye stalk | ommatophore ... a movable stalk with a compound eye at the 
tip, as in lobsters, shrimps, snails, and certain other crustaceans and mollusks... [DOC] [TLE] ommatophore Definition - Crossword Solver [PAR] What does ommatophore mean?