Infraciliature, right ventrolateral view

Description :

Right ventrolateral view of the infraciliature of the colpodid ciliate, Bryometopus pseudochilodon (Kahl, 1932). The cell shape and size is quite variable. This population has a shape like Colpoda maupasi. The anterior end is pointed and the posterior end broadly rounded. The elliptical oral vestibulum is in the anterior 1/3. There is a curved line of adoral membranelles along the left side of the vestibulum and an undulating membrane on the right. There are 20-25 slightly spiraled somatic kineties consisting of doubly ciliated dikinetids. The ellipsoid macronucleus contains many small micronuclei. There are two relatively large micronuclei adhering to the macronucleus. Collected from a temporary rainwater pool with decaying grass near Boise, Idaho march 2005. Silver carbonate stain (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Brightfield.