New Zealand Mudsnail (IMAGE) Indiana University Caption Potamopyrgus antipodarum is a snail that lives in the muds of New Zealand's lakes, rivers and estuaries. Shown are an infected snail (top) and an uninfected snail (bottom) after being removed from their shells. The spots visible on the infected snail are parasite cysts. Credit Gabe Hart Usage Restrictions Users of the photo must credit Gabe Hart. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.