Family: Body often reniform; with ciliary rows making asymmetrical patterns;
division within reproductive cysts (Kudo,1966).
Genus: Ovoid, inhabiting a mucilaginous sac or lorica; vestibulum large and shallow, occupying
1/3 of ventral surface; on the right of the vestibulum lie a short row of long curved cilia;
a macronucleus; contractile vacuole subterminal (Carey, 1992).
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Cyrtolophosis, x 100, x 200, x 400, x 640, Uruguay Nov. 1999, photo by Yuuji Tsukii
