image_list image_listE

Oligohymenophorea: Hymenostomatia: Scuticociliatida: Pleuronematina: Pleuronematidae

Pleuronema sp.
Dujardin, 1836

Pleuronema Family: Paoral membrane prominent, may be large and may project stiffly (Carey, 1992).
Genus: Ovoid to ellipsoid; peristome begins at anterior end and extends for 2/3 the body length; a conspicuous membrane at both edges; one to many posterior stiff sensory cilia (Kudo, 1966). Swimming as leaping movement.

Similar Genus ->> Uronema; Cyclidium

Pleuronema sp. (medium size), pear-shaped, cell body 27 μm long, 10 μm wide, x 400, x 640, Japan, November 1998, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Pleuronema Pleuronema Pleuronema

Pleuronema setigerum Calkins, 1902: 40-50 μm long; long peristome with large undulatory membrane; long cilia; several large caudal cilia (How to know the protozoa, 1979). Elongate, 50 μm long; rather pointed in the posterior; cytostome and undulating membrane (velum) lie in the posterior region; somatic ciliation uniform with very long caudal cilia; macronucelus ovoid, located centrally (Carey, 1992).

Please click on images for viewing enlarged.
Copyright Protist Information Server