title: Sorocarp development by a newly discovered ciliate.
abstract: A recently discovered predatory ciliate has an unusual developmental pattern in which the swimming cells cease feeding and aggregate on a substrate near the surface of a liquid medium. The aggregate then rises aerially, producing an acellular stalk and a sorus of encysted cells. Sorogenesis requires alternate light and dark periods.
authors.forename: L S
authors.initials: LS
authors.lastname: Olive