Colpidium colpoda (Losana, 1829) Ganner

Kim, Ji Hye & Jung, Ji Hye Moon and Jae-Ho, 2018, New records of 24 ciliate species (Protozoa, Ciliophora) collected in South Korea, Journal of Species Research 7 (4), pp. 291-314 : 307-308

20. Colpidium colpoda (Losana, 1829) Ganner and

Foissner, 1989 ( Fig. 20 )

Material examined. Freshwater collected from Gyeongpocheon River , Unjeong-dong , Gangneung-si, Gangwon-do, Korea (37°47 ʹ 20 ʺ N, 128°54 ʹ 34 ʺ E) on November 9, 2017 .

Diagnosis. Body size 62-73 × 29-32 μm after protargol impregnation; oval to reniform; single ellipsoidal macronucleus, size about 26× 10 μm; single oval to spherical micronucleus size about 3-4.5 μm; 3 peniculi; semicir- cular undulating membrane; 60-66 somatic kineties; 2 secondary meridians between primary meridians in silverline system.

Distribution. Cosmopolitan.

B

Remarks. Colpidium colpoda is similar to C. kleini Foissner, 1969 but different by the number of secondary meridians (2 vs. 1) and the number of somatic kineties (60- 66 vs. 32-44) ( Foissner et al., 1994).

Voucher slides. Two slides of protargol-impregnated specimens were deposited at National Institute of Biological Resources, Korea (NIBRPR0000109413, NI- BRPR0000109414).

Figures

Fig. 20. Colpidium colpoda after protargol (A-D) and ‘dry’ silver nitrate impregnation (E). A. Ventral ciliature. B. Dorsal ciliature. C. Detail of oral ciliature. D. Macro- and micronucleus. E. Two secondary meridians between primary meridians in silverline system. Scale bar=30 μm(A).