Amphisiella sinica Li, Zhao, Ji, Al-Rasheid,, 2016

Kim, Ji Hye, Omar, Atef & Jung, Ji Hye Moon and Jae-Ho, 2020, Taxonomy of 16 indigenous ciliate species (Protozoa, Ciliophora) from South Korea, Journal of Species Research 9 (4), pp. 427-442 : 429-430

3. Amphisiella sinica Li, Zhao, Ji, Al-Rasheid,

Al-Farraj & Song, 2016 ( Fig. 3 )

Material examined. Marine water with some debris (salinity, 30.7‰) collected from Anin Beach , Gangdong-myeon , Gangneung-si, Gangwon-do, Korea (37°44′4.7″N 128° 59′ 24.2″E) on 22 Jan 2019 .

Diagnosis. Body size in vivo about 110-170 × 30-40 μm (n = 5); elongate elliptical to fusiform with anterior portion slightly cephalized and curved leftwards; 2 macronuclear nodules; two kinds of colorless cortical granules: larger granules grouped along dorsal kineties; smaller distributed on whole cortex; ring-shaped structures with shallow brim, in anterior and posterior body portions; 55 adoral membranelles on average; median cirral row extends to transverse cirri, and consists of about 47 narrowly spaced cirri; left and right marginal row composed of about 44 and 43 cirri, respectively.

Distribution. China and Korea.

Remarks. The Korean population of A. sinica resembles the type population ( Li et al., 2016). It is also similar to A. annulata in the body size, the general cirral pattern, the two macronuclear nodules, and the two types of cortical granules ( Li et al., 2007). However, they differ mainly in the number (many vs. few or absent) and the arrangement (in anterior and posterior part vs. if present, scattered in whole cytoplasm) of the ring-shaped structures, and the shape of the anterior body portion (cephalized vs. non-cephalized).

Voucher slides. Two slides with protargol-impregnated specimens were deposited at National Institute of Biological Resources (NIBRPR0000110188, NIBRPR0000110 189).

Figures

Fig. 3. Photomicrograph of Amphisiella sinica in vivo (A-C) and after protargol impregnation (D, E). A. Typical body shape in vivo. B. Cytoplasmic inclusions details (arrowheads mark ring-like structures). C. Cortical granulation around dorsal bristles (arrowheads) and patchlike smaller cortical granules (arrows). D. Ventral ciliature. E. Dorsal kineties. DB, dorsal bristles; DK, dorsal kinety. Scale bars=50μm (A, B, D); 20μm (C).