gnathobase

gnathobase
Endite which through medial contact with opposite member of its pair serves for comminution of food; may also serve in food transport [Moore and McCormick, 1969].
Paired endites used to manipulate or move food [McLaughlin, 1980].
(Class Cephalocarida):
One of several setose projections of base (protopod) of maxillule. Extends under labrum and serves in manipulating food. Endites of maxillae and thoracopods also occasionally termed gnathobases [Stachowitsch, 1992].
(Subclass Cirripedia):
Inwardly (medially) directed lobe of proximal part (protopod) of mouthpart. Represents greater part of each mandible, maxillule, and maxilla [Stachowitsch, 1992].
(Subclass Copepoda):
Basal part of mandible. Basically consists of elongated projection whose toothed tip extends over mouth. Bears palp (with endopod and exopod). (Syn. blade) [Stachowitsch, 1992].
(Subclass Copepoda):
The projecting medial surface of the coxal segment of an appendage [Boxshall and Halsey, 2004].
(Subclass Copepoda):
The ventral extension of the mandibular coxa, including its setose endite [Ferrari and Dahms, in press].
(Subclass Mystacocarida):
Projection of base (protopod) of each mandible. Extends under labrum and serves in macerating food [Stachowitsch, 1992].
(Class Ostracoda):
Basal part of mandible. Corresponds to coxa and consists of elongated projection who toothed tip extends over mouth [Stachowitsch, 1992].
(Superorder Syncarida):
In anaspidacean, one of two spinose lobes (endites) of first segment (coxa) of maxilliped [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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  • gnathobase — n. [Gr. gnathos, jaw; basis, base] 1. (ARTHROPODA) One of a pair of endites used to manipulate or move food in trilobites, and some crustaceans. 2. (ARTHROPODA: Chelicerata) In arachnids, the projection from the coxa of a leg or palp, used in… …   Dictionary of invertebrate zoology

  • gnathobase — gnatho·base …   English syllables

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  • mandible — Most anterodorsally situated of gnathal appendages; one, of a pair, of heavily calcified jaws; the teeth. [Hobbs and Jass, 1988]. On of the heavily calcified jaws lying anterior to (beneath, in ventral view) the other mouth parts but visible in… …   Crustacea glossary

  • endite — ( ) [Holthuis, 1993]. Schematic drawing of a thoracic leg. [Holthuis, 1993] A mesial lobe like extension of a podomere or such an extension from the axial part of an unsegmented appendage [Hobbs, Hobbs, and Daniel 1977]. A non specific term to… …   Crustacea glossary

  • palp — A lateral appendage of the mandible or the maxilliped [Wilson, 1989]. Reduced distal portion of limb, usually only one of its rami, but may compromise both rami plus basis; usually consists of distal 2 or 3 segments following merus [Moore and… …   Crustacea glossary

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