Figure 16 from: Veeravechsukij N, Namchote S, Neiber MT, Glaubrecht M, Krailas D (2018) Exploring the evolutionary potential of parasites: Larval stages of pathogen digenic trematodes in their thiarid snail host Tarebia granifera in Thailand. Zoosystematics and Evolution 94(2): 425-460. https://doi.org/10.3897/zse.94.28793

Figure 16 Echinostome cercaria. a. specimen stained with 0.5% neutral red. b. drawing of cercaria. c. redia stained with 0.5% neutral red. Abbreviations – cs: collar spines; eb: excretory bladder; ep: esophagus; mct: main collecting tube; os: oral sucker; p: pharynx; pp: prepharynx; ta: tail; vs: ventral sucker. Scale bars: 50 µm.