Table 2 in Morphology and Molecular Analyses of a New Marine Ciliate, Arcuseries minima sp. nov. (Ciliophora: Urostylidae)

Table 2. Morphological comparison of Arcuseries minima sp. nov. with four similar species.
CharacteristicaA. scutellumA. petziA. warreniA. warreniHolosticha sp.A. minimaBody length in vivo50–80 μm85–105 μm80–120 μm70–100 μm–35–55 μmBody lengthca. 55 μmca. 102 μmca. 82.6 μmca. 75 μmca. 65 μmca. 34 μmCortical granules in vivoColorless, scattered, ca. 1 μmType I: colorless, mitochondria-like, ca. 3 μm; Type II: dark, clustered around cirri and dorsal bristles, ca. 1 μm; Type III: colorless, scattered, ca. 0.5 μmColorless, erythrocytes in shape, arranged dorsally in three irregular rows, ca. 2 μmType I: Colorless, erythrocytes in shape, arranged dorsally in three irregular rows, ca. 2 μm; Type II: colorless, clustered around cirri and dorsal bristles, ca. 1 μmColorless, ellipsoidal to spherical shape, ca. 3 μmType I: colorless, spherical shape, ca. 3 μm; Type II: yellowish, clustered around cirri and dorsal bristles, ca. 1 μm; Type III: colorless, scattered, ca. 0.5 μmMacronuclear nodules, numberca. 62ca. 80ca. 50ca. 52ca. 30ca. 23Adoral membranelles, numberca. 18 (17 or 18)ca. 25 (20–30)ca. 28 (26–31)ca. 29 (28–30)ca. 17ca. 14 (13–16)Midventral pairs, number6 or 710–167–97–93 or 42–5Left marginal cirri, numberca. 14 (11–17)ca. 25 (18–32)ca. 23 (22–27)ca. 22 (20–25)ca. 14ca. 11 (9–13)Right marginal cirri, numberca. 15 (10–18)ca. 30 (24–42)ca. 23 (21–26)ca. 23 (20–27)ca. 17ca. 11 (9–14)Transverse cirri, number88–1110–1210–126 or 75 or 6Dorsal kineties, number333343Dikinetids on dorsal kinety 1, numberb812191464–6ReferenceChen et al. (2010)Shao et al. (2011)Song and Wilbert (1997)Kim and Min (2018)Wilbert and Song (2005)This study
a All data based on protargol-stained specimens.
b Counted from illustrations.