Pseudophyllomitus granulatus ( Larsen et Patterson 1990 ) Lee 2002

Aydin, Esra Elif & Lee, Won Je, 2012, Free-living Heterotrophic Flagellates from Intertidal Sediments of Saros Bay, Aegean Sea (Turkey), Acta Protozoologica 51 (2), pp. 119-137 : 133

Pseudophyllomitus granulatus ( Larsen et Patterson 1990) Lee 2002 ( Figs 3m , 4r)

Observation: Cell is sack-shaped, flexible, 7–21 µm long and slightly flattened, being elliptical in cross section. Two flagella of unequal length emerge subapically. The nonacronematic anterior flagellum beats with a sine wave, is about 2.6 times the cell length and is directed to the front and slightly to the right during swimming. The posterior flagellum inserts to the left of the anterior flagellum, is about 1.3 times the cell length and trails behind the cell when swimming. Cytoplasm is extending at the posterior end. Refractile granules are visible beneath the cell surface. The roundish nucleus is located below the anterior pocket, near the centre of the cell. Description based on observation of one cell.

Remarks: Lee (2002a) redescribed Phyllomitus undulans Stein 1878 , and this lead to the establishment of a new genus for this organism Pseudophyllomitus . As mentioned in Lee (2002a) Pseudophyllomitus species are sac-shaped and flexible, and the two flagella are inserted subapically and do not adhere to each other. This genus contains four nominal species: Pseudophyllomitus apiculatus (Skuja 1948) Lee 2002 , Pseudophyllomitus granulatus (Larsen et Patterson) Lee 2002 , Pseudophyllomitus salina (Lackey 1940) Lee 2002 , and Pseudophyllomitus vesiculosus ( Larsen et Patterson 1990) Lee 2002 . Pseudophyllomitus granulatus is similar to P. salinus in general appearance and cell length, but P. salinus has shorter flagella. This species is reported from marine sites in subtropical and tropical Australia, Brazil, Denmark, Hawaii and Korea ( Larsen and Patterson 1990; Vørs 1992b; Lee and Patterson 2000; Lee 2001, 2002a).

Figures

Fig. 3. a – Petalomonas marginalis; b – Petalomonas minuta; c – Petalomonas ornata; d – Petalomonas poosilla; e–f – Ploeotia corrugata; e – general appearance of the cell from ventral and (f) dorsal view showing the ridges; g – Sphenomonas angusta; h – Ploeotia vitrea; i – Polyoeca dichotoma; j – Protaspis obliqua; k – Protaspis tegere; l – Salpingoeca marina; m – Pseudophyllomitus granulatus; n–p – ‘Aegoni’, n – postero-lateral view of the cell showing the beak – like structure; o – posterior view of the cell showing the flagellar insertions; p – general view of the cell. Scale bar: 5 μm for all figures.