The larger of two halves of a diatom frustule (shell).

Microbiology. . 2009.

Look at other dictionaries:

  • Epitheca — Ep i*the ca, n. [NL., fr. Gr. epi upon + ? a case, box, fr. ? to place.] (Zo[ o]l.) A continuous and, usually, structureless layer which covers more or less of the exterior of many corals. [1913 Webster] …   The Collaborative International Dictionary of English

  • epitheca — noun The upper half of the theca of a thecate protist such as a diatom or dinoflagellate. The frustules structure is usually composed of two overlapping sections, known as valves. The upper valve is termed the epitheca and is slightly larger and… …   Wiktionary

  • epitheca — n. [Gr. epi, upon; theke, case] (CNIDARIA) The external layer surrounding the theca in many corals …   Dictionary of invertebrate zoology

  • epitheca — epi·theca …   English syllables

  • epitheca — …   Useful english dictionary

  • Epitheca bimaculata — Epitheca bimaculata …   Wikipédia en Français

  • Epitheca bimaculata — Zweifleck Zweifleck (Epitheca bimaculata) Systematik Ordnung: Großlibellen (Anisoptera) …   Deutsch Wikipedia

  • Zweiflecke — Zweifleck (Epitheca bimaculata), kurz nach der Imaginalhäutung Systematik Unterklasse: Fluginsekten (Pterygota) …   Deutsch Wikipedia

  • Zweiflecklibelle — Zweifleck Zweifleck (Epitheca bimaculata) Systematik Ordnung: Großlibellen (Anisoptera) …   Deutsch Wikipedia

  • Common Baskettail — male Scientific classification Kingdom: Animalia …   Wikipedia

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