- 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, and, in some forms, frontal region.(b) anterolateral. Lateral part of carapace bordering subhepatic or hepatic regions.(c) branchial. Lateral part of carapace behind pterygostomial region and overlying branchiae, divided by some authors into epibranchial, mesobranchial, and metabranchial subregions.(d) cardiac. Median part of carapace behind cervical groove or suture, between urogastric and intestinal areas.(e) frontal. Anteromedian part of carapace including rostrum and area behind it.(f) gastric. Median part of carapace in front of cervical groove and behind frontal region; divided by some authors into epigastric, mesogastric, metagastric, protogastric, and urogastric subregions.(g) hepatic. Part of carapace which may touch antennal, cardiac, and pterygostomial regions.(h) intestinal. Short transverse part of carapace behind cardiac region, designated by some as posterior cardiac lobe.(i) jugal. See: Pterygostomial region.(j) orbital. Part of carapace behind eyes, bordered by frontal and antennal regions.(k) pterygostomial. Anterolateral part of carapace on ventral surface located on opposite sides of buccal cavity.(l) subhepatic. Part of carapace below hepatic region and extending below lateral edge of latter. (Syn. carapace area) [Moore and McCormick, 1969].(m) suborbital. Part on anteroventral surface beneath orbit(Order Decapoda):Differentiated portion of carapace surface. See: carapace regions [McLaughlin, 1980].(Order Decapoda):One of numerous, more or less clearly delimited and elevated subdivisions of carapace. According to position or underlying internal organs, as well as according to group, one may distinguish antennal, anterolateral, branchial, cardiac, epibranchial, epigastric, frontal, gastric, hepatic, intestinal, mesobranchial, mesogastric metabranchial, metagastric, orbital, posterolateral, protogastric, pterygostomial, subhepatic, and urogastric regions [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.
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carapace region — (ARTHROPODA: Crustacea) Differentiated portion of the surface of a carapace … Dictionary of invertebrate zoology
carapace groove — Furrow on surface of decapod, generally dorsal named types: a) antennal. Furrow on carapace extending backward from vicinity of antennal spine. b) branchiocardiac. Oblique furrow approximately in middle of posterior half of each side of carapace … Crustacea glossary
carapace grooves — (Order Decapoda): (a) antennal. Extending posteriorly from vicinity of antennal spine. (b) branchiocardiac. Oblique groove approximately in middle of posterior half on each side of carapace, separating branchial and cardiac regions and reaching… … Crustacea glossary
carapace spine — Sharp projection of carapace important for classification chief types: (a) antennal. Spine on front margin of carapace slightly below orbit. (b) branchiostegal. Spine on front margin of carapace or slightly behind it about halfway between… … Crustacea glossary
carapace carina — Narrow ridge on surface of carapace (cf. decapod carapace and stomatopod integumental ornamentation) [McLaughlin, 1980]. Narrow ridge variously located on surface of decapoda carapace named types: a) antennal. Narrow ridge extending backward from … Crustacea glossary
carapace — ( ) [Baba, 2005]. Entire animal, right appendages omitted, dorsal view, based on Munida. [Baba, 2005] ( ) [Baba, 2005]. Carapace, spines, based on Munida. [Baba, 2005] Head Shield cuticular structure arising from posterior margin of cephalon,… … Crustacea glossary
carapace carinae — (Order Decapoda): (a) antennal. Extending posteriorly from antennal spine. (b) branchial. Extending posteriorly from orbit over branchial region. (c) branchiocardiac. Dividing branchial from cardiac region. (d) gastroorbital. Extending… … 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
hepatic region — See: carapace region g [Martin, 2005]. Paired anterolateral areas of the carapace bounded anteriorly by the antennal region, posteriorly by the branchial region, and mesially by the gastric region [Perez Farfante and Kensley, 1997]. Paired… … Crustacea glossary
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