mucronate valve
see beak.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • beak — n. [OF. bec, beak] 1. Anything projecting and ending in a point. 2. (ARTHROPODA) a. In Chelicerata, the gnathosome of acarines. b. In Crustacea, the anteroventral projection of the free margin of the carapace; not equivalent to rostrum. c. In… …   Dictionary of invertebrate zoology

  • Glossary of botanical terms — Many of the terms used in Wikipedia glossaries (often most) are already defined and explained within Wikipedia itself. However, lists like the following indicate where new articles need to be written and are also useful for looking up and… …   Wikipedia

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