Saudithrix terricola Foissner, Al-Rasheid

Kim, Ji-Yeong & Jung, Jae-Ho, 2016, Taxonomic survey on ciliate diversity in eastern area of Kangwon-province, Korea: Brief records of fifteen species unrecorded from Korea, Journal of Species Research 5 (3), pp. 333-342 : 338

12. Saudithrix terricola Foissner, Al-Rasheid and

Berger in Berger, Al-Rasheid and Foissner, 2006 ( Fig. 2D )

Diagnosis: Body size 220 × 80 μm in protargol preparations, flattened dorsoventrally; both body ends rounded; flexible. Nuclear apparatus composed of two macronuclear nodules with several micronuclei at left mid­body. Contractile vacuole at left margin of mid­body. Cytoplasm colorless. Movement, without any peculiarities, crawling on soil surface. Cirri, on average, composed of frontal multicorona, two buccal cirri, five frontal-ventral rows (including right marginal cirral row), one left marginal cirral row, and seven transverse cirri. Oral apparatus Cyrtohymena pattern of undulating membranes.

Remark: The genus Saudithrix consists of a single species (monotypy) and it is first record from Korea. Saudithrix terricola is one of large hypotrichs and has many frontal­ventral rows. The Korean population showed slightly small size and less number of frontal­ventral rows (number of the rows in 5 specimens: 4, 4, 4, 4, 5). It emphasizes further investigation with morphometrical analyses between the two populations.

Voucher slides: Two slides including protargol­impregnated specimens have been deposited in the National Institute of Biological Resources in Korea (NIBRPR0000 107114, NIBRPR0000107115).

Figures

Fig. 2. Protargol­stained specimens, ventral views. A. Frontonia depressa, 65 μm in length; B. Anteholosticha distyla, 125 μm in length; C. Periholosticha paucicirrata, 70 μm in length; D. Saudithrix terricola, 220 μm in length; E. Oxytrichella mahadjacola, 35 μm in length; F. Notohymena antarctica, 80μm in length; G. Phacodinium metchnicoffi, 100 μm in length.