Figure 3 | Scientific Reports

Figure 3

From: Integrative taxonomy of a new Redudasys species (Gastrotricha: Macrodasyida) sheds light on the invasion of fresh water habitats by macrodasyids

Figure 3

Redudasys brasiliensis sp. nov. Transmission electron micrographs. (a) Longitudinal section of the anterior body region showing the mouth and the whole pharynx. Note the ventrolateral muscles running from the lateral pouch. (b) Longitudinal section of an anterior adhesive tube arising from a lateral pouch; the insertion of ventrolateral muscle is visible. (c) Longitudinal section of anterior body end, showing the terminal mouth, the buccal cavity lined with a thin cuticle (arrow) and the pharyngeal longitudinal muscles inserted at mouth ring. (d) Cross-section of the pharynx, showing the Y-inverted lumen and the insertion points of the TbA (arrows). (e) Longitudinal sections of a protonephridium, showing the nuclear and filter region of the terminal cell. (f) Longitudinal sections of a protonephridium, showing, anal cell with a single luminal cilium and a nephridiopore cell. bc = buccal cavity, c = cilium, cc = canal cell, fr = filter region, m = mouth, n = nucleus, nc = nephridiopore cell, plm = pharyngeal longitudinal muscles, TbA = anterior adhesive tubes, tcl = terminal cell, vlm = ventrolateral muscles.

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