Paraenchelys wenzeli Foissner, 1984

Kim, Ji Hye & Jung, Atef Omar and Jae-Ho, 2020, Brief description of 18 newly recorded ciliate species from soil and inland waters (Protozoa, Ciliophora) in South Korea, Journal of Species Research 9 (3), pp. 251-268 : 261

12. Paraenchelys wenzeli Foissner, 1984 ( Fig. 12 )

Material examined. Terrestrial moss collected from Mt. Yeonhwasan , Sinbun-ri , Yeonghyeon-myeon, Goseong-gun, Gyeongsangnam-do, Korea (N 35°4 ʹ 8.2 ʺ, E 128°13 ʹ 47.1 ʺ) on 4 February 2019 .

Diagnosis. Size about 105 × 40 μm in vivo and 80 - 125 × 21 - 45 μm after protargol impregnation (n = 3). Body shape pyriform. Extrusomes scattered on whole body, teardrop shape, conspicuously large about 15 × 2 μm in vivo. Cortical granules ellipsoidal, regularly arranged, and about 0.6 × 0.4 μm. Single sausage-like shape macronucleus. 55 - 77 somatic kineties. Dorsal brush rows irreg- ularly fragmented.

Distribution. Austria, Germany, Namibia, Singapore, Turkey, and Korea

Remarks. The Korean population of P. wenzeli differs from both the type population ( Foissner, 1984) and the Turkish population ( Senler and Yildiz, 2009) only in the number of somatic kineties (55 - 77 vs. 32 - 53 and 34 - 45, respectively). Paraenchelys wenzeli is distinguishable from P. terricola by the length of extrusome (15 μm vs. 10 μm on average) and the shape of macronucleus (sausage-like vs. ellipsoidal) ( Foissner, 1984).

Voucher slides. Two slides with protargol-impregnated specimens were deposited at the Nakdonggang National Institute of Biological Resources (NNIBRPR11680, NNIBRPR116801).

Figures

Fig. 12. Paraenchelys wenzeli from life (A-C) and after protargol impregnation (D-F). A. Typical body shape in vivo. B. Details of cytoplasmic structures including macronucleus, extrusomes and contractile vacuoles. C. Peculiar large, teardrop shape extrusomes. D. Macronucleus with micronucleus and weakly impregnated large extrusomes. E. Somatic and oral ciliature (arrow indicates micronucleus). F. Details of fragmented dorsal brush rows. B, brush rows; E, extrusomes; MA, macrnucleus; MI, micronucleus. Scale bars=30 μm(A, B, D, E); 10 μm(C).