SERC Photos:
Physa acuta_0766
SERC Photos:
Ferrissia rivularis_0771
SERC Photos:
Gyraulus parvus_0774
SERC Photos:
Gyraulus parvus_0780
SERC Photos:
Potamopyrgus antipodarum_GPR_09-30-17_0758
SERC Photos:
Potamopyrgus antipodarum_GPR_09-30-17_0761