Epithema vs Epitheca - What's the difference?
epithema | epitheca |
(microbiology, planktology) The upper half of the theca of a thecate protist such as a diatom or dinoflagellate.
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As nouns the difference between epithema and epitheca
is that epithema is a horny excrescence upon the beak of birds while epitheca is the upper half of the theca of a thecate protist such as a diatom or dinoflagellate.epitheca
English
Noun
(epithecae)- The frustule's structure is usually composed of two overlapping sections, known as valves. The upper valve is termed the epitheca and is slightly larger and overlaps the lower valve, the hypotheca.
ucl.ac.uk diatom webpage
- The diatom frustule is often likened to a pill-box ... with an epitheca (larger upper valve), and a hypotheca (smaller lower valve).
