Stephanopogon sp.

Lee, Won Je, 2019, Small Free-Living Heterotrophic Flagellates from Marine Intertidal Sediments of the Sydney Region, Australia, Acta Protozoologica 58 (4), pp. 167-189 : 178

Stephanopogon sp.

Figs 1l, 2f

Description: Cells are 16–30 µm long and dorso-ventrally flattened with several rows of kineties. The ventral surface terminates anteriorly as three barbs. The cells move by crawling or swimming with flagella. Rarely observed.

Remarks: This genus contains 7 nominal species: S. apogon Borror, 1965 , S. colpoda Entz, 1884 , S. mesnili Lwoff, 1923 , S. minuta Lei et al., 1999 , S. mobilensis Jones et Owen, 1974 , S. paramesnili Lei et al., 1999 and S. pattersoni Lee et al., 2014 . This species is distinguished from Stephanopogon apogon by the barbs at the anterior end of the cell and is substantially smaller than Stephanopogon colpoda , Stephanopogon mesnili and Stephanopogon paramesnili . It can not be distinguished morphologically from other three species ( S. minuta , S. mobilensis , S. pattersoni ) under the light microscopy because all of them have barbs at the anterior end of the cell and they are similar in cell length. Recently, this genus was well documented by Yubuki and Leander (2008) and Lee et al. (2014).

Figures

Fig. 2. (a)–(b) Mastigamoeba psammobia, (a) general appearance of cell, note cytoplasms drawn from the posterior end, (b) general appearance of different cell and note pseudopodia. (c) Hexamita inflata, general appearance, note the nucleus. (d) Trepomonas agilis, general appearance of cell. (e) Chilomastix cuspidata, showing general appearance. (f) Stephanopogon sp., showing general appearance. (g) Saepicula pulchra, showing general appearance of cell. (h)–(j) Goniomonas amphinema. (h) Form I, (i) Form II, (j) Form III, note flagellar ar- rangement. (k) Roombia truncata, note attached cell to the substrate by the tip of the posterior flagellum, note extrusomes, surface striations and deep gullet. (l) Telonema subtilis, showing general appearance. (m) Harpagon descissus, general appearance of cell. (n)–(o) Spironema multiciliatum, (n) general appearance of cell, (o) note the kinetics. (p) Psammosa unguis, general appearance of cell. (q) Bicosoeca conica, general appearance of cell. (r) Apusomonas proboscidea, genera appearance of cell, note the V-shaped structure on dorsal face. All micrographs are DIC images except for (b), which is phase contrast images. Scale bar in (r) = 10 μm for all figures.