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Ribadelago de Franco, Castille and Leon, Spain
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Ribadelago de Franco, Castille and Leon, Spain
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Hedriocystis undergoing division within faceted stalked capsule. Axopodia protrude from pores in capsule. Daughter cells become flagellated, escape the lorica then secrete their own stalk and lorica. Two of the five species in the genus have a spherical non-faceted lorica. Recently, a new genus, Penardiophrys has been erected for the faceted desmothoracid species such as this one. From freshwater pond near Boise, Idaho. Phase contrast. See Mikrjukov,K. Taxonomy and Phylogeny of Heliozoa I. Acta Protozool 39:81-97, 2000.
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Hedriocystis - portrait of a species with smooth non-faceted spherical lorica. Phase contrast. From a freshwater pond near Boise, Idaho.
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Hedriocystis species within faceted stalked siliceous capsule. Axopodia protrude from pores in capsule. Two of the five species in the genus have a spherical non-faceted lorica. Recently a new genus, Penardiophrys has been erected for the faceted desmothoracid species such as this one. From freshwater pond near Boise, Idaho. Phase contrast. See Mikrjukov,K. Taxonomy and Phylogeny of Heliozoa I. Acta Protozool 39:81-97, 2000.
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Hedriocystis, a small desmothoracid protist. The cell lives as an amoeba with stiffened arms (axopodia) within a loose lorica that has large holes or perforations. The lorica is stalked. When the cell divides, it may produce flagellated cells which leave the lorica and set up home elsewhere. From Lake Donghu, China. Phase contrast micrograph.
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Hedriocystis pellucida Scale bar indicates 10 µm. Sample from a pond near Großostheim, Germany. Sampling date 04/2021. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond near Großostheim (Germany) Latitude: 49.88482168 Longitude: 9.09980822 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Probe aus einem Waldteich bei Großostheim. Datum der Aufsammlung: 04/2021. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.