Cohnilembus verminus (Müller, 1786) Kahl, 1933

Jung, Ji Hye Kim and Jae-Ho, 2019, Brief description of newly recorded eight ciliate species (Protozoa, Ciliophora) collected from South Korea, Journal of Species Research 8 (4), pp. 380-388 : 386

7. Cohnilembus verminus (Müller, 1786) Kahl, 1933

( Fig. 7 )

Material examined. Mud flat with marine water (salinity 24‰) collected from Sunam-ri, Goseong-gun, Gyeongsangnam-do, Korea (34°57 ʹ 40 ʺ N, 128°19 ʹ 03 ʺ E) on 25 September 2018 .

Diagnosis. Body size 58-112 × 7-8 μm after protargol impregnation; spindle-like body shape; buccal field nar- row and length about 40-60% of body length; single triangular to ellipsoidal macronucleus; 10 or 11 somatic kineties; of membranelle 1consists of a single row and occupies about 80% of buccal field, membranelles 2 and 3 close to each other and near posterior part of buccal area.

Distribution. Cosmopolitan.

Remarks. Of the genus Cohnilembus , C. verminus is the only species described using standard methods ( Song, 2000; Hu et al., 2009). The Korean population corresponds with the Chinese population morphologically by the slender body shape, the oral and somatic ciliary pattern, and the habitat ( Hu et al., 2009).

Voucher slides. Two slides with protargol-impregnated specimens were deposited at National Institute of Biological Resources (NIBRPR0000109485, NIBRPR0000109 486) and one slide was deposited at the National Marine Biodiversity Institute of Korea (MABIK PR00043191).

Figures

Fig. 7. Cohnilembus verminus after protargol impregnation. A, B. Right side views showing somatic, oral infraciliature, and nuclear apparatus. C. right side view showing details of buccal field. M1- 3, membranelle 1-3. Scale bars=30μm.