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