Macrostomum littorale Wang & Shi, sp. nov. A whole animal, ventral view B testes and ovaries C male copulatory apparatus, ventral view D immature sperm E mature sperm F–H penis stylet. Abbreviations: e: eye; fvs: false vesicula seminalis; m: mouth; o: ovary; pg: pharyngeal glands; ps: penis stylet; pso: penis stylet opening; t: testis; vg: vesicula granulorum; vs: vesicula seminalis. Scale bars: 100 μm (A); 50 μm (B); 20 μm (C); 5 μm (D, E); 10 μm (F–H).

 
 
  Part of: Shi Y, Zeng Z, Wang J, Zhang S, Deng L, Wang A (2022) Three new species of Macrostomum (Platyhelminthes, Macrostomorpha) from China and Australia, with notes on taxonomy and phylogenetics. ZooKeys 1099: 1-28. https://doi.org/10.3897/zookeys.1099.72964