Figure 2 from: Du Preez LH, Van Rooyen M (2015) A new polystomatid (Monogenea, Polystomatidae) from the mouth of the North American freshwater turtle Pseudemys nelsoni. ZooKeys 539: 1-9. https://doi.org/10.3897/zookeys.539.6108

Figure 2 - Polystomoides nelsoni sp. n. A large hamuli from the holotype and paratypes B small hamuli from holotype and paratype C marginal hooklets 1 D marginal hooklets 2–8. Scale bars: 50 µm (A, B); 20 µm (C, D).