Dugesia umbonata, photomicrographs showing the hump. A, B. paratype PLA-0153, horizontal sections (anterior at the top); C, D. paratype PLA-0154, transverse sections.

  Part of: Song X-Y, Li W-X, Sluys R, Huang S-X, Li S-F, Wang A-T (2020) A new species of Dugesia (Platyhelminthes, Tricladida, Dugesiidae) from China, with an account on the histochemical structure of its major nervous system. Zoosystematics and Evolution 96(2): 431-477. https://doi.org/10.3897/zse.96.52484