Campanella umbellaria (Linnaeus, 1767)

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 : 309-310

21. Campanella umbellaria (Linnaeus, 1767)

Godfuss, 1820 ( Fig. 21 )

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 October 25, 2017 .

Diagnosis. Colony height about 2000 μm; rigid stalk; zooids bell-shaped, measuring 190-225 × 100-110 μm in vivo; peristomial lip width 130-140 μm; macronucleus horizontal C-shape; one contractile vacuole dorsally located; rectangular silverline system about 37-42 horizontal striation between peristomial lip and trochal band, about 33-38 striation between trochal band and scopula; haplokinety and polykinety parallel and spiral in counterclockwise direction four and one-half times around peristomial disc; infundibular polykinety 1 (P1) and P2 consisted 3 kineties; P3 composed of more than 5 kineties; P1-P3 1 turn of infundibulum; haplokinety of infundibulum accompanied belt-like filamentous re- ticulum.

Distribution. Cosmopolitan.

Remarks. Campanella umbellaria is common species in eutrophic freshwater environment ( Shi et al., 2004). The main characters for the identification of this species are the four and one-half times turn haplokinety and polykinety on the peristomial disc ( Foissner et al., 1992; Shi et al., 2004).

Voucher slides. Two slides of protargol-impregnated specimens were deposited at National Institute of Biological Resources, Korea (NIBRPR0000109411, NIBRPR0000109412).

Figures

Fig. 21. Campanella umbellaria in vivo (A-C), after protargol (D, E) and ‘dry’ silver nitrate impregnation (F). A. Typical colony. B. Rigid stalk. C. Typical zooid. D. Infundibular polykinety. E. Haplo- and polykinety with macronucleus. F. Rectangular silverline system. Scale bars=1000 μm (A), 100 μm(C).