title: Morphology, biometry and taxonomic position of two peritrich ciliate Protozoa found in activated sludge.
abstract: The morphology of two sessile peritrich species taken from a plant for the processing of activated sludge is described. One of these species, having a non-contractile, branched peduncle, belongs to the genus, Heteropolaria, and the other having a single, contractile stalk, is a member of the genus Vorticella. A statistical and biometric study is made of their morphological characteristics, and the taxonomic position of both ciliates is discussed.
authors.affiliation: Laboratorio de Biologia General, Facultad de Ciencias Biológicas, Universidad Complutense, Madrid, Spain.
authors.forename: G
authors.initials: G
authors.lastname: Fernandez-Leborans
authors.forename: P
authors.initials: P
authors.lastname: Moro
mesh_terms: D000818:Animals; D016798:Ciliophora / Q000145:classification* / Q000648:ultrastructure; D012722:Sewage
chemical_list: D012722:Sewage