Neobodonida

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.

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.

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.

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.

Bodo designis (beau-dough), small flagellate, with two flagella, moving with a rotating motion, skipping or gliding motion. One of the most common of the bodonids, found in almost every habitat so far studied. Moves by skipping near surfaces. It stops to ingest attached or detrital bacteria with the anterior mouth (in the rostrum). Phase contrast, rotten picture.

Bodo designis, small flagellate, with two flagella, moving with a rotating motion, skipping or gliding motion. The flagella insert into a small subapical pocket, as is suggested by the subapical depression. One of the most common of the bodonids, found in almost every habitat so far studied. Moves by skipping near surfaces. It stops to ingest attached or detrital bacteria with the anterior mouth (in the rostrum). Phase contrast

Bodo (Boe-dough) designis Skuja, 1948. Cell outline is usually elliptical. Cells are 4 to 7 microns long with two unequal flagella emerging from a subapical pocket and are somewhat flexible. The anterior flagellum is about the length of the cell or slightly shorter and curves back over the rostrum. The anterior flagellum wraps around the anterior part of the cell and the mouth is pressed against food particles when the cell is feeding. The acronematic posterior flagellum is about 2 - 4 times the length of the cell and has a sinuous profile in swimming cells. The cells rotate around their longitudinal axes when swimming. The nucleus is located near the middle of the cell. Commonly observed.

Bodo designis Skuja, 1948. Bodo cells that are usually elliptical, 4 to 7 microns long with two unequal flagella emerging from a subapical pocket and are somewhat flexible. The anterior flagellum is about the length of the cell or slightly shorter and curves back over the rostrum. The anterior flagellum wraps around the anterior part of the cell and the mouth is pressed against food particles when the cell is feeding. The acronematic posterior flagellum is about 2 - 4 times the length of the cell and has a sinuous profile in swimming cells. The cells rotate around their longitudinal axes when swimming. The nucleus is located near the middle of the cell.

Bodo (Boe-dough) curvifilus Griessmann, 1913. Cell outline is oval or bean-shaped. The cells are 5 to 8 microns long, flattened, and pliable. The two flagella are unequal in length and insert subapically and to one side in a small pocket. The anterior flagellum is as long as the cell, is curved and beats slowly with a paddling motion. The trailing posterior flagellum is acronematic and is about 2.5 to 3 times the length of the cell. Cells normally glide but may have a squirming movement. Often observed.

Rhynchomonas nasuta (rink-owe-moan-ass), a kinetoplastid flagellate. Arguably the most widespread heterotrophic flagellate - so fare found in northern and southern hemispheres, Atlantic and Pacific, surface waters and in deep sediments, coastal and oceanic, in water column and in sediments, in soils and freshwater habitats, in waters so salty the salt is crystallizing and from guaranteed anoxic habitats. There are two flagella, but the front one supports an expanded lobe of cytoplasm which includes the mouth and looks a bit like a nose or a proboscis. Posterior flagellum is acronematic - in that the posterior section is thinner than the bit nearer the body. Eats bacteria through its nose. Phase contrast.

Rhynchomonas, distinctive kinetoplastid flagellate, with swollen or bulbous ingestion apparatus that is supported by the anterior flagellum and has a waggling movement. Second flagellum trails behind the cell and is acronematic - the tip is thinner than the rest of the flagellum. Phase contrast micrograph.

Portrait of Rhynchomonas, a small, colorless bodonid flagellate. Two flagella, one short anterior and embedded in the mobile rostrum, the other about twice the body length trailing posteriorly. Bactivorous. Ingestion occurs via cytostome at the tip of the rostrum. The nucleus is seen anteriorly adjacent to the posterior flagellum in this image. Several digestive vacuoles are also seen. Collected from standing freshwater pond near Boise, Idaho. Phase contrast.

Portrait of Rhynchomonas, a small, colorless bodonid flagellate. Two flagella, one short anterior and embedded in the mobile rostrum, the other about twice the body length trailing posteriorly. Bactivorous. Ingestion occurs via cytostome at the tip of the rostrum. An anterior contractile vacuole is seen in this image. Collected from standing freshwater pond near Boise, Idaho. Phase contrast.

Rhynchomonas - the nosey flagellate. This organism eats bacteria that stick to particles of detritus. The mouth is in the 'nose' and it is pushed over bacteria and somehow they are detached and pulled into the flagellate for digestion.

Rhynchomonas nasuta (rink-owe-moan-ass), a kinetoplastid flagellate. Arguably the most widespread heterotrophic flagellate - so fare found in northern and southern hemispheres, Atlantic and Pacific, surface waters and in deep sediments, coastal and oceanic, in water column and in sediments, in soils and freshwater habitats, in waters so salty the salt is crystallizing and from guaranteed anoxic habitats. There are two flagella, but the front one supports an expanded lobe of cytoplasm which includes the mouth and looks a bit like a nose or a proboscis. Posterior flagellum is acronematic - in that the posterior section is thinner than the bit nearer the body. Eats bacteria through its nose. Phase contrast.

Rhynchomonas nasuta (rink-owe-moan-ass), a kinetoplastid flagellate. Arguably the most widespread heterotrophic flagellate - so fare found in northern and southern hemispheres, Atlantic and Pacific, surface waters and in deep sediments, coastal and oceanic, in water column and in sediments, in soils and freshwater habitats, in waters so salty the salt is crystallizing and from guaranteed anoxic habitats. There are two flagella, but the front one supports an expanded lobe of cytoplasm which includes the mouth and looks a bit like a nose or a proboscis. Eats bacteria through its nose. Phase contrast.

Rhynchomonas (rink-owe-moan-ass) one of these most widely distributed of all eukaryotes, having been found in marine and freshwater sites all round the world, in anoxic sites and in sites with so much salt that crystals form. Its tolerance for extremes now also illustrated by its occurrence in a thermal stream. This is a bodonid, the anterior nose contains a mouth with which it eats bacteria, and with one trailing flagellum which narrows towards the posterior end. Phase contrast. Material from Nymph Creek, thermal sites within Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.

Rhynchomonas (rink-owe-moan-ass) nasuta Klebs, 1893. Cells are 3.5 to 6 microns long and flattened. The cells are flexible with a bulbous motile snout. The snout, which contains a mouth, beats slowly. The anterior flagellum lies alongside the snout and is hard to see, and the trailing flagellum is about 2 to 2.7 times the cell length, and is acronematic. The cells consume attached bacteria. The cells move by gliding. Commonly observed.

Rhynchomonas nasuta (Stokes, 1888) Klebs, 1893. Cells are 3.5 to 6 microns long and flattened. The cells are flexible with a bulbous motile snout. The snout, which contains a mouth, beats slowly. The anterior flagellum lies alongside the snout and is hard to see, and the trailing flagellum is about 2 to 2.7 times the cell length, and is acronematic. The cells consume attached bacteria. The cells move by gliding. Commonly observed.

Single Rgynchomonas nasuta gliding over a field of bacteria - its food. Phase contrasty micrograph.

Gliding cell, trailing flagellum just out of focus, snout is short and held close to the cell. 

This image was made from samples taken during a scientific cruise in the Pacific. Water was filtered to concentrate the organisms that were present, then dried onto a thin sheet of plastic and then shadowed with a fine layer of metal to provide contrast. The preparation was then observed with an electron-microscope. This technique has been used to document the diversity of marine microbes, especially, protists in the oceans.

Three profiles of Rhynchomonas isolated from Little Sippiwissett Marsh, Massachusetts. Phase contrast image by Banoo Malik.