Brief description of 18 newly recorded ciliate species from soil and inland waters (Protozoa, Ciliophora) in South Korea
Author
Kim, Ji Hye
Natural Science Research Institute, Gangneung-Wonju National University, Gangneung, Republic of Korea
Author
Jung, Atef Omar and Jae-Ho
text
Journal of Species Research
2020
9
3
251
268
journal article
10.12651/JSR.2020.9.3.251
2713-8615
13140071
17.
Epistylis pygmaeum
(Ehrenberg, 1838)
Foissner,
Berger & Schaumburg, 1999 (
Fig. 17
)
Material examined.
Freshwater
with some debris collected from
Domun-dong
,
Sangju-si
,
Gyeongsangbuk-do
,
Korea
(
N 36°26
ʹ
8.09
ʺ
,
E 128°14
ʹ
29.96
ʺ
) on
14 May 2019
.
Diagnosis.
Colony dichotomously branching, usually short epistylid stalk; zooid size 35
-
40 × 21
-
27 μm in vivo; zooid shape barrel shape to cylindrical, rarely campanulate; peristomial lip width 21
-
22 μm in vivo (n = 3). Single contractile vacuole located on ventral side. Transverse silverlines, 16
-
23 striations between anterior end and aboral ciliary wreath, 11
-
15 striations between aboral ciliary wreath and scopula. Infundibular polykinety 3 composed of two rows.
Distribution.
Cosmopolitan.
Remarks.
Epistylis pygmaeum
is a common epizoic peritrich. The Korean population of
E. pygmaeum
corresponds to other populations.
Epistylis pygmaeum
is similar to
E. anastatica
, but mainly differs in the size of zooid (35
-
40 μm vs. 60
-
100 μm) (
Foissner
et al.
, 1999
).
Voucher slides.
Two slides with protargol-impregnated specimens were deposited at the Nakdonggang National Institute of Biological Resources (NNIBRPR11672, NNIBRPR11673).