Bicosoeca conica Lemmermann 1912
publication ID |
https://doi.org/ 10.4467/16890027AP.12.010.0514 |
persistent identifier |
https://treatment.plazi.org/id/039287F7-FF9F-4F6A-FC92-B3969ADF583D |
treatment provided by |
Felipe |
scientific name |
Bicosoeca conica Lemmermann 1912 |
status |
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Bicosoeca conica Lemmermann 1912 ( Figs 1d View Fig , 2d View Fig )
Observation: Cell is about 4.5 μm long, located in a conical lorica which is about 5.5 μm long with a stalk about 6.5 μm long. Two flagella are of unequal length and arise near the anterior end of the cell. The anterior flagellum is about 3 times the cell length and beats with a high amplitude sine wave, and the posterior flagellum is slightly longer than the cell and attaches to the lorica. The lorica attaches to the substrate using a stalk, which is about 10 μm long. One cell found.
Remarks: Generally, our observation is in agreement with those of Larsen and Patterson (1990). Bicosoeca conica is smilar to B. gracilipes James-Clark 1967 which has a cylindrical lorica. Bicosoeca conica was reported from marine sites in subtropical Australia, Brazil, the Pacific and the Atlantic ( Larsen and Patterson 1990, Patterson et al. 1993, Vørs et al. 1995, Lee 2001) with cell length of 4 μm. The species of Bicosoeca have been distinguished by the shape of the lorica, but the boundaries among many species are not clear, and this genus needs more attention. Thus, many synonyms may exist in the genus, and further work is required to clarify the identities of species in this genus.
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