Reference

A. Guinea, A. Sola, J. Longas, D.D. Fernández-Galiano (1990): Morphology and morphogenesis of two species of the genus *Lembadion* (Ciliophora, Oligohymenophora): *Lembadion lucens* and *Lembadion bullinum* – J. Protozool. – 37: 553 - 561.