Characterization and Taxonomic Validity of the Ciliate Oxytricha trifallax (Class Spirotrichea) Based on Multiple Gene Sequences: Limitations in Identifying Genera Solely by Morphology
Stephen D. Zoller, Robert L. Hammersmith, Estienne C. Swart, Brian P. Higgins, Thomas G. Doak, Glenn Herrick, Laura F. Landweber