Adoral zone of membranelles

Adoral zone of membranelles

Taxonomic markers

ciliate

Definition

The adoral zone of membranelles is an orderly arrangement of membranelles around the peristomial field, terminating in the buccal cavity. The term was probably introduced by Bütschli (1887-1889) and is favoured, as the younger term “oral polykinetids” (Sniezek et al. 1991, Snyder and Brownlee 1991, Choi et al. 1992, Wasik and Mikoajczyk 1994) is restricted to the basal bodies of the membranelles and their associated fibres; both are only recognizable after silver impregnation. Furthermore, the expression “adoral zone of membranelles” is also used in the related class Hypotrichea (hypotrichs and stichotrichs). Agatha and Riedel-Lorjé 2006.