Abstract: Periwinkles samples (Tympanostomus fuscatus) bought from different major markets in Warri Township were investigated for elemental contaminants. The total levels of iron, copper, barium, lead, cadmium, chromium, nickel and cobalt were determined by atomic absorption spectrophotometry. All the metals except Cr ands Co were present in appreciable quantities in the samples. In descending order of predominance, the overall mean levels (ppm) of the metals in the periwinkles are: Fe (14.67) > Cr (13.59) > Ba (6.46) > Cu (2.06) > Cd (0.57) >Pb (0.05) while Ni and Co were below detection limit. Cluster analysis of the samples predicts a common source for the periwinkles.