Oral infraciliature

Description:

Anterior apical view of the infraciliature of Vasicola ciliata (Tatem, 1869). The cytostome is at the base of a shallow funnel-shaped depressin. There are three groups of cilia encircling the cytostome 1)the circumoral kinety is composed of a single row of transversely oriented dikinetids 2) the anterior row of "membranelles" composed of a single row of longitudinally oriented dikinetids 3) the posterior row of "membranelles", a band of four longitudinal orietd kinetids. Longitudinal fibrils extend from the cytostome to the right of the kinetids. Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.