Zebra mussels, Dreissena polymorpha, found amongst ordered European pond snail, Viviparus viviparus.

 
 
  Part of: Dickey JWE, Brennan RS, Chung SS-W, Jeschke JM, Steffen GT, Briski E (2023) ´╗┐More than we bargained for: Zebra mussels transported amongst European native freshwater snails. NeoBiota 83: 1-10. https://doi.org/10.3897/neobiota.83.97647