Hemicycliostyla sphagni Stokes, 1886

Chae, Kyu-Seok, Kim, Kang-San, Jung, Jongwoo & Min, Gi-Sik, 2023, Unrecorded species of Korean protozoans discovered through the project of ‘ Discovery of Korean Indigenous Species’ III, Journal of Species Research 12 (4), pp. 355-361 : 360

12. Hemicycliostyla sphagni Stokes, 1886 ( Figs. 4A, B )

ũNjḇùöAEệ (ṵÿ)

Hemicycliostyla sphagni Stokes, 1886

Material examined. Jeju-si (33°24′15.2″N, 126°20′59.6″ E), Jeju-do, South Korea; 25 October 2018.

Deposition. NIBRPR0000110229.

Distribution. Austria, Costa Rica, and South Korea.

Diagnosis. Cell size 230 - 340 × 50 - 90 μm from after protargol impregnation; body flexible with slender to elliptical shape; 67 - 76 adoral zone of membranelles; scattered many macronuclear nodules; 15 - 23 frontal cirri in bicorona; midventral complex composed of 2 midventral cirral rows; 4 or 5 left and 3 or 4 right marginal rows; transverse cirri lacking; 6 dorsal kineties; 5 or 6 caudal cirri.

Remarks. Hemicycliostyla sphagni should be compared with two congeners, H. lacustris and H. marina . Hemicycliostyla sphagni differs from H. lacustris based on body length (230 - 340 μm vs. about 190 μm) and number of adoral zone membranelles (67 - 76 vs. 50 - 60) ( Gellért and Tamás, 1958). Hemicycliostyla sphagni can be distinguished from H. marina based on its habitat (terrestrial vs. marine) ( Kahl, 1932).

Family Pseudokeronopsidae Borror & Wicklow, 1983 ûṷ각AEŭ

Genus Pseudokeronopsis Borror & Wicklow, 1983 위각AEệṩ

Figures

Fig. 4. Photomicrographs of Ciliophora(A-D).A, B, ventral(A) and dorsal(B) view of Hemicycliostyla sphagni after protargol impregnation; C, ventral view of Pseudokeronopsis songi from life; D, E, ventral(D) and dorsal (E) view of P. songi after protargol impregnation. Scale bars: 50 μm(A, D), 10 μm(C).