- submedian spine
- Lateral spine between median and hepatic spines on carapace [Butler, T.H.].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.
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lower submedian spine — Lateral spine of carapace, between submedian and hepatic spines of Mesocrangon muntinella [Butler, T.H.] … 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 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 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 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
denticule — A non articulated extension of the shaft of a seta or spine [Watling, 1989]. A short, pointed, tooth like projection of the cuticle [Wilson, 1989]. In cirripeds (Balanomorpha), primary or secondary toothlet on sutural edge of radius of… … Crustacea glossary