Several (2-substituted)-spiro(cyclohexane)-1′ ,5-[1,3,4]oxadiazolo[3,2-c]thiazolines 3 and (2-substituted)-spiro(cyclohexane)-1′,5-[1,3,4]thiadiazolo[3,2-c] thiazolines 6 have been synthesised from 3-arylamido-spiro(cyclohexane)-1′ ,2-(4-thiazolidinone) 2 and 3-(N-substituted arylthiocarbanilido)-spiro(cyclohexane)-1′,2-(4-thiazolidinone) 5 respectively which in turn have been prepared by reaction of 1-aroylcyclohexane-hydrazone 1 and 1-aryl-4-cyclohexane thiosemicarbazone 4 with thioglycollic acid respectively. The molluscicidal activity of few title compounds has been evaluated against snail Lymnaea acuminata.