Palaeos.com: 'Rows of cilia on Ciliophora. A more interesting question is whether this word is singular or plural. If plural, what the hell is the singular? Almost all sources scrupulously avoid using the singular by various circumlocutions and studied grammatical artifice. One source uses "kinety," an Anglo-Saxon truncation that seems implausible on a Greek root. The truth is probably that the correct singular has been long forgotten or was never mentioned in the original paper, whatever that might have been. Wonderful are the ways of science.'