Pogaina paranygulgus. (a) Habitus of live animal. (b) Copulatory organ of live animal. (c) Pharynx with small protrusions (black arrow). (d) Copulatory bursa of live animal. (e) Stylet of a paratype. cb: copulatory bursa; co: copulatory organ; e: eye; epg: extracapsular prostate glands; ipg: intracapsular prostate glands; m: muscle; ma: male atrium; p: photobiont; ph: pharynx; st: stylet; sv: seminal vesicle; vi: vitellarium. Scale bars: a = 50 µm; b = 20 µm; c = 10 µm; d = 10 µm; e = 20 µm
