Cafeteria
Cafeteria Fenchel & Patterson, 1988 (ref. ID; 5772)
Stramenopiles Patterson, 1989 (ref. ID; 4872)
- Cafeteria marsupialis Larsen & Patterson, 1990 (ref. ID; 4872)
- Cafeteria minuta (Ruinen) Larsen & Patterson, 1990 (ref. ID; 5772)
Syn; Pseudobodo minuta Ruinen, 1938 (ref. ID; 5772)
- Cafeteria roenbergensis Fenchel & Patterson, 1988 (ref. ID; 4872, 5772) reported author and year? (ref. ID; 7455)
Descriptions
Body with variable D-shaped profile, and laterally flattened as described in Larsen & Patterson (1990). As is characteristic for the genus, attached to substrate by tip of posterior flagellum, anterior flagellum directed normally to the groove. Feeds on suspended bacteria, which are drawn towards the cell by the activity of the anterior flagellum, entering along a curved channel at the posterior end of the cell. More frequent in slightly anaerobic preparations. Cells attached or swimming. (ref. ID; 4872)
Measurements
Average length 8 um, range 7-10 um. The size range 5-15 um has previously been reported by Larsen & Patterson (1990). (ref. ID; 4872)
Cafeteria minuta (Ruinen) Larsen & Patterson, 1990 (ref. ID; 5772)
Synonym
Pseudobodo minuta Ruinen, 1938 (ref. ID; 5772)
Remarks
This small species is distinguished from Cafeteria roenbergensis by its longer hairy flagellum (relative to the cell body). An extensive production of pseudopodia from all parts of the cell body was sometimes observed. (ref. ID; 5772)
Previous records
(Marine); Tropical Australia and Brazil (Larsen & Patterson 1990), W. India (Ruinen 1938). (ref. ID; 5772)
Measurements
Cell diameter ca. 3 um or measuring ca. 2x4 um (diam. 3.5-4 um or measuring 1-1.5x1.5-2.5 um); length of long flagellum: ca. 8.3 um (4.5-12.5 um); length of short flagellum: ca. 5 um (2-5 um). (ref. ID; 5772)
Cafeteria roenbergensis Fenchel & Patterson, 1988 (ref. ID; 4872, 5772) reported author and year? (ref. ID; 7455)
Descriptions
Appearance consistent with description in Fenchel & Patterson (1988) and Larsen & Patterson (1990). Cells rotate around their vertical axis while swimming, but are usually encountered attached to the substrate by the posterior tip of the recurrent flagellum. (ref. ID; 4872)
Grazing behavior. (ref. ID; 7455)
Remarks
Minute or unusually large specimens developed in the crude cultures from Belize, together with more intermediate sized cells. These specimens were otherwise characteristics for C. roenbergensis. It is typical of some heterotrophs that unusually large or pseudopodia-rich "monster cells" develop in dense cultures (e.g. Actinomonas, unpubl obs.). Large cells (up to 9 um) were also observed in dense cultures by Larsen & Patterson (1990), and these were regarded as "eco-morphs" of C. roenbergensis. (ref. ID; 5772)
Previous records
(Marine); Tropical Australia (Larsen & Patterson 1990): the Baltic Sea (Fenchel & Patterson 1988; Vors 1992): Antarctica and Greenland (Vors 1993). (ref. ID; 5772)
Measurements
Average length 4.7 um, range 3.5-7.0 um. Previous investigations report the size range to be 4-6 um (Fenchel & Patterson 1988), 3-6 um (Larsen & Patterson 1990), 2-10 um (Vors 1992). (ref. ID; 4872)
2-7x3-15 um (length: 3-6(-9) um). (ref. ID; 5772)