-
Bodo (boe-dough) saliens Larsen and Patterson, 1990. Cells are usually elongate elliptical and somewhat inflexible, and are 4 to 12 microns long (mostly 6 to 9 microns). Two flagella unequal in length emerge subapically from a shallow pocket. The anterior flagellum appears inactive, is as long as or slightly shorter than the cell and is held forwards with a single anterior curve held perpendicular to the substrate. The acronematic posterior flagellum is typically directed straight behind the cell and is about 2.2 to 3.5 times cell length. The cells swim in rapid darts in straight lines. Frequently observed. Description based on observations of 43 cells.
-
Cruzella marina De Faria et al., 1922. Cells metabolic, about 27.5 microns, spindle-shaped or oval, slightly compressed on the sides, with sharp-pointed posterior end, when anterior end is terminated by a long snout. The anterior flagellum is shorter than the trailing flagellum, it is equal to the body length and it emanates from the end of the snout. The trailing flagellum emanates just below the snout and is twice the body length. The contractile vacuole not described. Nuclues in the centre.
-
Portrait of the colorless euglenoid flagellate, Menoidium bibacillatum (Pringsheim, 1942). Strongly flattened. One side curved with the other more straight. One emergent flagellum. Stigma absent. Paramylon bodies are dimorphic with smaller round and larger elongate ring forms. Swims rotating on long axis. Highly refractile. From standing freshwater near Boise, Idaho. DIC.
-
-
Cryptobia are monogenetic (single host) bodonid flagellates with an anteriorly directed flagellum and a recurrent flagellum attached along the entire length of the body, but does not form a prominent undulated membrane. The cytostome is situated far from the flagellar pocket but is linked to it by a prominent preoral ridge. The cell bears a kinetoplast at the base of the flagella. All are parasitic or endo-commensals in host cavities such as reproductive system of gastropods, the gut of fishes. This species, Cryptobia helicis, is from the seminal receptacle of Helix - a snail, contracted and elongated form with the anterior kinetoplast close to the nucleus, the anterior free flagellum and the recurrent adherent flagellum (Giemsa).
-
Scale bar indicates 10 µm. Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA).
-
Distigma (die-stig-ma), heterotrophic euglenid flagellate. There are two flagella which are attached to the cell in a flagellar pocket which is an invagination that leads to the front of the cell by a tube called the flagellar canal. The light disc near the front is the contractile vacuole which is located alongside the flagellar pocket which cannot be seen in this image. One flagellum is long, the other short. The cytoplasm has large amounts of paramylon granules. The cell can squirm (is metabolic). Phase contrast.
-
Euglena ehrenbergii. Cell observed in freshwater habitats in the vicinity of Broome, Western Australia in September 2003. This image was taken using phase contrast optics. This work was supported by the Australian Biological Resources Study.
-
10.1371/journal.pmed.0050055.g003/Simarro et al. 2008 [PLos Medicine 5(2): e55]
EOL staff
Map of Africa Showing the Epidemiological Status of Countries Considered Endemic for Human African Trypanosomiasis
-
Aldcliffe, England, United Kingdom
-
So called euglenid flagellate
-
Trypanosoma cruzi
-
Bodo saliens Larsen and Patterson, 1990. Bodo cells that are usually elongate elliptical and somewhat inflexible, and are 4 to 12 microns long (mostly 6 to 9 microns). Two flagella unequal in length emerge subapically from a shallow pocket. The anterior flagellum appears inactive, is as long as or sightly shorter than the cell and is held forwards with a single anterior curve held perpendicular to the substrate. The acronematic posterior flagellum is typically directed straight behind the cell and is about 2.2 to 3.5 times cell length. The cells swim in rapid darts in straight lines.
-
Cells metabolic, about 27.5 microns, spindle-shaped or oval, slightly compressed on the sides, with sharp-pointed posterior end, when anterior end is terminated by a long snout. The anterior flagellum is shorter than the trailing flagellum, it is equal to the body length and it emanates from the end of the snout. The trailing flagellum emanates just below the snout and is twice the body length. The contractile vacuole not described. Nuclues in the center. ATCC 50326.
-
Portrait of the colorles euglenoid flagellate,Menoidium bibacillatum (Pringsheim, 1942). Strongly flattened. One side curved with the other more straight. One emergent flagellum. Stigma absent. Paramylon bodies are dimorphic with smaller round and larger elongate ring forms. Swims rotating on long axis. Highly refractile. From standing freshwater near Boise, Idaho. Phase contrast.
-
Distigma sennii Pringsheim, 1942. Metabolic swimming euglenid, cell typically club-shaped, broader anteriorly and truncated with an apical canal-opening, the posterior end of cell tapers, cells are 40 - 62 microns long. With two flagella, unequal in length. The longer flagellum is about 0.25-0.35 cell length and the recurrent flagellum is very short (5 - 6 microns), slightly curved and directed sideways or to the posterior of the cell. The pellicle seems smooth. The reservoir is in the middle of the cell with an associated contractile vacuole. A nucleus is located centrally or slightly behind the centre of the cell. The cell contains a large number of ellipsoidal or cylindical refractile grains and when swimming the cell moves quickly and rotates.
-
From snails, phase contrast showing the anterior flagellum and the recurrent adhering flagellum.
-
-
Euglena ehrenbergii. Cell observed in freshwater habitats in the vicinity of Broome, Western Australia in September 2003. This work was supported by the Australian Biological Resources Study.
-
Trypanosoma forms in blood smear from patient with African trypanosomiasis
-
Phase contrast image of organism believed to be a euglenid flagellate (which is sarcasm for 'They're wrong').
-
Trypanosoma cruzi amistigotes
-
Phacus (fake-us) is a genus of autotrophic euglenids. It can be distinguished from Euglena by being flattened or twisted and rigid. The most species of the genus are flat and leaf-shaped often with ridges or fins running helically or longitudinally. The chloroplasts are small, discoid and pyrenoids are usually absent. There is a single red eyespot and one locomotive flagellum. Phacus contains conspicuous paramylon bodies, mostly with one ore two large bodies in the centre of the cell. The genus is common in freshwater ecosystems, in muds and associated with detritus. This specimen was collected in freshwater ponds near Konstanz, Germany. Phacus skujai is a small member of the genus. The cells are slender and ovoid. The large paramylon body (often accompanied by a second smaller body) in the mid-cell and the short spine point to the ventral side are said to be distinctive for the species. 28 µm.
-
Scanning electron micrograph showing the anterior flagellum and the cell shape.