Frontonia subtropica Pan et al., 2013

Lee, Sue Yeon, Yoo, Jung Sun & Kim, Seung Tae, 2017, New records of two soil and one marine ciliate species (Ciliophora: Intramacronucleata) from Korea, Journal of Species Research 6, pp. 67-70 : 69

3. Frontonia subtropica Pan et al., 2013 ( Figs. 1 H-K)

Diagnosis. Size about 155 × 100 μm from protargol impregnated specimens, ellipsoidal body shape, dorsoventrally slightly flattened, anterior end broad and posterior end slightly narrowed; cytoplasm containing blue granules and algae; extrusomes spindle-shaped, densely arranged alongside somatic kinety rows; somatic kineties composed of about 115 rows; peniculi 1-3 each with four kineties; five vestibular and five postoral kineties; one elongate elliptical marcronucleus; one micronucleus attached to macronucleus.

Material examined. From Seawater at Aam-do Waterfront Park (salinity, 28 psu), Incheon-si, Jung-gu, Korea (37°26 ʹ 43.30 ʺ N, 126°37 ʹ 54.14 ʺ E), December 16, 2014 .

Voucher slides. A slide of protargol-impregnated specimens was deposited at the National Institute of Biological Resources, Korea (NIBRPR0000107958).

Remarks. Frontonia subtropica differed from its congeners by cell size (155 × 100 μm), number of somatic kineties (approximately 115 rows) and vestibular kineties (5 rows) ( Pan et al., 2013).