metagastric lobe

metagastric lobe
Posterior division of gastric region of decapod (brachyuran) carapace; may be ill defined or undifferentiated [Moore and McCormick, 1969].
Posterolateral lobe or subregion of gastric region; often not defined [Williams, 1984].
(Order Decapoda):
See: carapace regions (f) [McLaughlin, 1980].

Crustacea glossary. . 2011.

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  • gastric region — See: carapace region f [Martin, 2005]. Large median area, in crab carapace, bounded behind by cervical suture, laterally by hepatic regions, and anteriorly by frontoorbital regions. Divisible into following subregions or lobes: epigastric,… …   Crustacea glossary

  • carapace region — Differentiated portion of decapod carapace surface distinguished in descriptions and used in classification named types: (a) antennal. Anterior marginal part of carapace bordering orbital region laterally and also touching hepatic, pterygostomial …   Crustacea glossary

  • carapace regions — (Order Decapoda): (a) antennal. Anterior marginal part bordering orbital region laterally, adjoining hepatic, pterygostomial, and occasionally also frontal regions. (b) anterolateral. Lateral part bordering subhepatic or hepatic regions. (c)… …   Crustacea glossary

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