carapace groove

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, separating branchial and cardiac regions and reaching dorsomedian part of carapace well behind cervical or postcervical grooves; may be longitudinal, connecting cervical and postcervical grooves, or extending backward from submedian point on postcervical groove.
c) cervical. Transverse furrow in median part of carapace between gastric and cardiac regions, curving forward toward antennal spine.
d) gastroorbital. Short longitudinal furrow branching from cervical groove at level of orbit and running toward it.
e) hepatic. Short longitudinal furrow connecting cervical with postcervical and branchiocardiac grooves, more or less continuing antennal groove.
f) inferior. Transverse furrow extending from junction or hepatic and cervical grooves toward side margin of carapace, more or less continuous with cervical groove.
g) marginal. Furrow close to posterior edge of carapace and parallel to it.
h) postcephalic. One of three transverse furrows on carapace of many fossil decapods.
i) postcervical. Furrow located behind cervical groove and parallel to it, dividing cardiac region into two parts.
j) submedian. Longitudinal furrow in submedian dorsal part of carapace closely adjacent to postrostral carina [Moore and McCormick, 1969].

Crustacea glossary. . 2011.

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  • 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 tooth — Generally blunt projection of carapace, often broader than spine. See: carapace teeth, stomatopod integumental ornamentation [McLaughlin, 1980]. Small sharp spinous projection in varied locations named types: (a) cardiac. Tooth on mid line of… …   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 teeth — (Order Decapoda): (a) cardiac. On midline of carapace just posterior to cervical groove. (b) gastric. On midline of carapace immediately anterior to cervical groove. (c) lateral. On lateral margin of carapace; anterolateral, mediolateral, and… …   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

  • postorbital groove — Groove on carapace behind orbit and more or less parallel to margin of orbit (Fig. 2) [Williams, 1984]. (Order Decapoda): On each side of carapace, groove close to and parallel with margin of orbit [Stachowitsch, 1992] …   Crustacea glossary

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