Histiobalantium natans viridis Kahl, 1931

Jung, Atef Omar and Jae-Ho, 2021, New record of 21 ciliate species (Protozoa, Ciliophora) from South Korea, Journal of Species Research 10 (3), pp. 301-320 : 316

20. Histiobalantium natans viridis Kahl, 1931 ( Fig. 19 )

Material examined. Saline water sample (0.4-1.0‰) collected from Gyeongpo Stream, Gangneung, Korea (37°47 ʹ 27 ʺ N, 128°54 ʹ 20 ʺ E) on 14 April 2020 .

Diagnosis. Body size 55-80 × 30-35 μm after protargol impregnation (n = 7); body slenderly to broadly ovate; 2, usually connecting, macronuclear nodules with irregular shape and 2 inconspicuous micronuclei each attaching to a macronuclear nodule; about 60 somatic ciliary rows; adoral membranelles in anterior part of oral cavity, membranelles 1 and 2 parallel to each other, membranelle 1 consists of 3 rows of basal bodies, with a triangular segment anteriorly, membranelle 2 composed of about 6 rows of basal bodies, membranelle 3 oblique to both of them; paroral membrane on right side of oral

Figures

Fig. 19. Photomicrograph of Histiobalantium natans viridis after protargol impregnation, left side showing body outline, ciliature, nuclear apparatus, and oral apparatus. M1-3, adoral membranelles; MA, macronuclei; MI, micronucleus; PM, paroral mem- brane. Scale bar=20μm.