buccal frame


buccal frame
structure of brachyuran decapods enclosing mouth parts, its sides formed by free anterolateral edges of carapace, its front delimited by epistome, and commonly closed by operculiform third maxillipeds [Moore and McCormick, 1969].
(Order Decapoda):
In crab-like (brachyuran) decapod, well-defined, frame-like depression on underside of head; contains mouthparts (labrum, mandibles, maxillules, maxillae, maxillipeds, labium) and may be covered by expanded (operculiform) maxillipeds. (quadrate, triangular). See: endostome [Stachowitsch, 1992].
(Infraorder Brachyura):
Structural region of cephalon enclosing mouthparts [McLaughlin, 1980].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • buccal frame — (ARTHROPODA: Crustacea) In Brachyura, the structural region of the cephalon that encloses the mouthparts …   Dictionary of invertebrate zoology

  • buccal cavern — Space, especially in crabs, enclosing the mouthparts and more or less covered by third maxillipeds, defined anteriorly by epistome and laterally by pterygostomial region, sometimes by ridges. (Syn. buccal frame) [Poore, 2004] …   Crustacea glossary

  • buccal cavity — Cavity on ventral surface of body in which mouth parts are situated; bounded anteriorly by epistome, laterally by free edges of carapace. Within this frame lie the mouth parts, which in most Brachyura are covered by operculiform third maxillipeds …   Crustacea glossary

  • endostome — Palate like part of buccal frame in some brachyuran decapods. (Syn. palate) [Moore and McCormick, 1969]. Part of epistome forming palate in brachyurans and usually separated from epistome proper by transverse ridge [Williams, 1984]. Plate inside… …   Crustacea glossary

  • epistome — A broad strongly calcified plate in front of, and above, the mouth. It represents the fused sternites of the third and fourth segments [Warner, 1977]. A transverse plate situated anterior to the mouth [Hobbs, Hobbs, and Daniel 1977]. Antennal… …   Crustacea glossary

  • endostome — n. [Gr. endon, within; stoma, mouth] (ARTHROPODA: Crustacea) In some brachyuran Decapoda, a platelike part of the buccal frame; a palate …   Dictionary of invertebrate zoology

  • mouthparts — A collective term for the appendages around the mouth which are concerned with feeding: mandibles, maxillae and maxillipeds [Warner, 1977]. All cephalothoracic limbs involved with feeding: mandibles through to third maxillipeds [Poore, 2004].… …   Crustacea glossary

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