Difference between revisions of "epistome"

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Revision as of 20:47, 11 September 2013

epistome also epistoma, epistomis, epistomum (noun; Greek epi, upon; stoma, mouth): 1. (Arthropoda: Chelicerata) See tectum, cervix.

2. (Arthropoda: Crustacea) In brachyuran Decapoda, a plate of varying shape between the labrum and bases of the antennae; sternum of antennal somite.

3. (Arthropoda: Insecta) a. In Diptera, the oral margin; that part of the face above the mouth. b. In Odonata, the clypeus. c. In certain Coleoptera, the reduced frontoclypeal region

See also: peristome. 4. (Bryozoa: Phylactolaemata) A small, movable lip-like lobe of tissue and coelom overhanging the mouth