Enchytraeus christenseni Dózsa-Farkas, 1992

(Figure 12, F–I)

NIBRIV0000320528, NIBRIV0000320529, slides 2019, 2020, two adult, fixed specimens whole-mounted in Euparal. The Korean specimens agree with the description in Schmelz & Collado (2010): small worm (2.3–4.3 mm long and 190–290 µm wide at VIII and 230–340 µm at clitellum, fixed, 24–30 segments). Chaetal formula: 2 – 2,3: 3 – 3. One pair oesophageal appendages. Sperm sack, sperm funnel (Fig. 12 I) and male copulatory organ small (Fig. 12 G). Coelomocytes with refractile vesicles (Fig. 12 H). Clitellum saddle shaped (Fig. 12 G). Spermathecal ectal ducts with uniform small glands on its entire length, the ducts longer than the spherical ampullae, ental ducts with separate openings into the oesophagus (Fig. 12 F). New for the Korean fauna.