Deviata bacilliformis ( Gelei, 1954 ) Eigner, 1995

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 : 305

5. Deviata bacilliformis ( Gelei, 1954) Eigner, 1995 ( Fig. 5 )

Material examined. Freshwater sample collected from Gangneung-Wonju National University, Gangneung, Korea (37°46 ʹ 14 ʺ N, 128°51 ʹ 56 ʺ E) on 7 April 2020 .

Diagnosis. Size in vivo 125-142 × 37-45 μm (n = 4); body elongate ellipsoidal; usually 2 ellipsoidal distinctly separated macronuclear nodules and 2 micronuclei; cytoplasm studded with food vacuoles; contractile vacuole left to mid-body; adoral zone occupies about 20% of body length and composed of about 18 adoral membranelles; 3 frontal cirri, 1 buccal and 1 parabuccal cirrus, undulating membranes parallel; one midventral cirral row extends to mid-body; 4 or 5 right marginal cirral rows, usually bipolar; 4 or 5 left marginal cirral rows; 1 dorsal kinety with bristles about 4 μm long.

Distribution. Cosmopolitan.

Remarks. The Korean population of Deviata bacilliformis agrees with the Argentinian population ( Küppers and Claps, 2010) in most aspects, such as the body shape, shape of the nuclear apparatus, and the two outermost marginal cirral rows, which commence with few bristles ( Küppers and Claps, 2010; Berger, 2011). The Chinese population studied by Li et al. (2014) differs from the Korean population in having lower number of marginal rows (3 vs. 4 or 5 in the right and left side, respectively). Deviata bacilliformis can be easily distinguished from other congeners by the number of dorsal kineties (1 vs. 2) ( Berger, 2011).

Voucher slides. Two slides with protargol-impregnated specimens were deposited at the Nakdonggang National Institute of Biological Resources (NNIBRPR20111, NNIBRPR20112).

Figures

Fig. 5. Photomicrographs of Deviata bacilliformis from life (A) and after protargol impregnation (B, C). A. Ventral view showing the body shape and the adoral zone of membranelles. B, C. Ventral (B) and dorsal (C) view showing the 5 right and 5 left marginal rows and the single dorsal kinety. DK, dorsal kinety; FC, frontal cirri; FVR, frontoventral row; LMR, left marginal rows; MA, macronucleus; MI, micronucleus; RMR, right marginal rows. Scale bars=30μm.