FIGURES 25–27 in Faunal survey and identification key for the trematodes (Platyhelminthes: Digenea) infecting Potamopyrgus antipodarum (Gastropoda: Hydrobiidae) as first intermediate host

FIGURES 25–27. Microphallus sp. "poulini" 25, Sporocyst, live (Sutton Stream voucher). Scale bar = 100. Numerical scale division = 10. 26, Cercariae, showing the two observed forms, live (Waimakariri River voucher). Scale bar = 100. Numerical scale division = 10. 27, Cercaria showing inflated penetration-gland ducts, live (Opihi River voucher). Scale bar = 100. Numerical scale division = 2.5.