Attheya

Attheya is a genus of small single celled diatoms. 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. However, they are also observed to be planktonic.

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

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