Dexiotricha granulosa (Kent, 1881) Foissner,, 1994

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, New records of terrestrial and freshwater ciliates (Protozoa: Ciliophora) from Korea: Brief descriptions with notes, Journal of Species Research 6, pp. 1-7 : 3

3. Dexiotricha granulosa (Kent, 1881) Foissner,

Berger and Kohmann, 1994 ( Fig. 1C)

Diagnosis. Body 40-60 × 20-25 μm in protargol preparations; ellipsoidal shape; rigid. Macronuclear nodule spherical to slightly ellipsoidal, positioned at mid-body; 1 micronucleus near macronuclear nodule, spherical. Contractile vacuole at mid-body; excretory pore conspicuous in protargol preparations. Cytoplasm colourless with conspicuous and dense ring structures. 1 caudal cilium, ca. 20 μm in length; about 33 somatic kineties.

Remarks. This is the first record of the genus Dexiotricha in Korea. The species has conspicuous spherical granules in the cytoplasm, which were easily recognizable during in vivo observation. Specimens were easily cultured in mineral water with rice grains. Aponotohymena australis and Paramecium sp. co-occurred in the cultures.

Voucher slides. Two slides, including protargol-impregnated specimens (GP), were deposited at the National Institute of Biological Resources in Korea (NIBR PR0000107189, NIBRPR0000107190).