Spathidium muscicola Kahl, 1930

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, Morphology of one Frontonia and two Spathidium ciliates (Ciliophora: Intramacronucleata) from Korea, Journal of Species Research 6, pp. 63-66 : 65

3. Spathidium muscicola Kahl, 1930 ( Figs. 1 H-J)

Material examined. The ridge of a leaf road, Damyanggun, Jeollanam-do, Korea (35°24 ʹ N, 126°59 ʹ E), June 4, 2016 .

Diagnosis. Size about 135 × 40 μm in vivo, 89-125 × 19- 40 μm after impregnation; oral bulge oblong, obliquely narrowly spatulated, about 2/3 of body width; cortical granules arranged between somatic kinety rows; four to six macronuclear nodules; micronucleus not observed; one contractile vacuole positioned rear of body end; extrusomes, fusiform developmental stage impregnates with protargol; mature oral bulge extrusomes in vivo rod-shaped; 20-23 somatic kineties, three anteriorly differentiated to form a dorsal brush.

Voucher slides. A slide of protargol-impregnated specimens was deposited at the Nakdonggang National Institute of Biological Resources, Korea (NNIBRIV6).

Remarks. The Korean population of Spathidium muscicola is consistent with the description provided by Dragesco and Dragesco-Kernéis (1986) and differs from S. curiosum species in the number of macronuclear nodules (four to six vs. one) ( Foissner, 2016).