FIGURE 3 in Two new species of freshwater Macrostomum (Rhabditophora: Macrostomorpha) found in China

FIGURE 3. Histological sections of Macrostomum chongqingensis Lin and Wang, n. sp. (A) Horizontal section showing the entire body; (B, C) horizontal sections through the post-cerebral region near the mouth; (D) longitudinal section through the mouth opening; (E–G) longitudinal sections showing reproductive system. (A–C) PLA-Ma0060 (holotype); (D, F, G) PLA- Ma0063 (paratype); (E) PLA-Ma0061 (paratype). Abbreviations: af: antrum femininum; b: brain; cnl: caudal nerve loop; e: eyes; eg: eosinophilic glands; en: enteron; fg: female gonopore; fvs: false vesicula seminalis; m: mouth; mg: male gonopore; o: ovary; p: pharynx; pg: pharyngeal glands; ps: penis stylet; t: testis; vg: vesicula granulorum; vs: vesicula seminalis.