portrait

Descrição:

Paracondylostoma setigerum. This image demonstrates the membranelles around the funnel-shaped oral aperture and the long anterior bristle cilia (indistinct here but seen on the organism's right). The delicate, transparent mucus sheath is apparent only due adherent debris. This individual contains many zoochlorellae. From freshwater pond near Boise, Idaho. Phase contrast illumination.