''Attheya'' is a genus of small single celled

diatom A diatom (Neo-Latin ''diatoma'') is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of Earth's B ...

s. Some of these species were earlier regarded to belong to '' Chaetoceros'', or to '' Gonioceros'', the taxonomic status of some of these species are still debated.Crawford, R.M., Hinz, F. and Koschinski, P. 2000. The combination of ''Chaetoceros gaussii'' (Bacillariophyta) with ''Attheya''. Phycologia 39(3):238-244.

Description

They are distinguished morphologically from '' Chaetoceros'' by the structure of valve outgrowths or girdle bands. The girdle bands can only be seen with an electron microscope.Crawford, R. M., Gardner, C., Medlin, L. K. 1994. The genus ''Attheya''. I. A description of four new taxa, and the transfer of ''Gonioceros septentrionalis'' and ''G. armatus''. ''Diatom research''. 9:27-51. Resting spores are seldom observed. Vegetative cells tend to attach to different substrates, including other diatoms,Tomas, C. R., Hasle G. R., Syvertsen, E. E., Steidinger, K. A., Tangen, K., Throndsen, J., Heimdal, B. R., (1997). ''Identifying Marine Phytoplankton'', Academic Press. and are sometimes referred to as

epiphytic An epiphyte is a plant or plant-like organism that grows on the surface of another plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphyt ...

. However, they are also observed to be

planktonic Plankton are the diverse collection of organisms that drift in water (or air) but are unable to actively propel themselves against currents (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they pro ...

Species

*'' Attheya arenicola'' C. Gardner & R. M. Crawford *'' Attheya armata'' (T. West) R. M. Crawford *'' Attheya decora'' T. West *'' Attheya flexuosa var. enodulifer'' C. Gardner *'' Attheya flexuosa'' C. Gardner *'' Attheya gaussii'' (Heiden) R. M. Crawford *'' Attheya lata'' Wooszynska *'' Attheya longicornis'' R. M. Crawford & C. Gardner *'' Attheya septentrionalis'' (Østrup) Crawford *'' Attheya ussurensis'' Stonik, Orlova & Crawford *'' Attheya zachariasii var. curvata'' P. Rivera *'' Attheya zachariasii'' Brun

References

External links

{{Taxonbar, from1=Q4034555, from2=Q21222594 Diatom genera Enigmatic eukaryote taxa Coscinodiscophyceae

Description

Species

References

Further reading

External links