title: A new flagship peritrich (Ciliophora, Peritrichida) from the River Rhine, Germany: Apocarchesium arndti n. sp.
authors.affiliation: Zoologisches Institut, Universität zu Köln, Weyertal 119, D-50923 Köln, Germany.
authors.forename: Helge
authors.initials: H
authors.lastname: Norf
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Foissner