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Late-stage divider- the two cells are not far from parting. Lugol's-fixed specimen from the Bay of Villefranche in Jan 2011
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Tintintinnidium balechi Barria de Cao 1981 - illustration from original description in Plate 3 of Barría de Cao M.S. 1981. Contribución al conocimiento de los Tintinnoineos (Ciliata, Protozoa) de la zona de Bahía Blanca. Contrib. Cient. Inst. Argentino Oceanogr. (IADO) 61, pp. 1-70.
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Muelas del Pan, Castille and Leon, Spain
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Tintinnidium, an oligotrich ciliate. The cell usually resides in an irregular gelatinous lorica to which particles adhere. The lorica is usually attached to the substrate. The organisms may be found free-swimming. When found in a lorica the cell is trumpet-shaped with a thin drawn out posterior that adheres to the base of the lorica. When free-swimming, the posterior of the cell becomes broadly rounded. A prominent adoral zone of membranelles is seen. The macronucleus is rounded. From a rainwater holding pond near Boise, Idaho. Bright field illumination.
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Tintinnidium, an oligotrich ciliate. Although often found residing in a gelatinous lorica with attached particles, this is a liberated free-swimming organism. Compared with loricate organisms, the free-swimming individuals have a broadly rounded posterior. The rounded macronucleus is seen on the organism's right. Ingested diatoms are visible. From a rainwater holding pond near Boise, Idaho. Oblique illumination.
