branchiostegal spine
(ARTHROPODA: Crustacea)
In Decapoda, a spine on the carapace between the antennal and pterygostomial spines.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • branchiostegal spine — See: carapace spine (b) [Martin, 2005]. See: carapace spines (b) [McLaughlin, 1980]. A short spine located on or near the anterior margin of the carapace, ventral to the antennal spine in the shrimps; in crayfishes, immediately ventral to the… …   Crustacea glossary

  • branchiostegal carina — Longitudinal ridge extending along anteroventral part of carapace, usually continuous with branchiostegal spine [Perez Farfante and Kensley, 1997] …   Crustacea glossary

  • spine — ( ) [Baba, 2005]. Carapace, spines, based on Munida. [Baba, 2005] ( ) [Baba, 2005]. Anterior part of carapace, including ocular peduncles, based on Munidopsis. [Baba, 2005] A cuticular outgrowth without a recognizable basal articulation [Ingle,… …   Crustacea glossary

  • pterygostomian spine — See: carapace spine (g) [Martin, 2005]. A spine borne on the anteroventral margin of the carapace, ventral to the branchiostegal spine (in shrimps) [Hobbs, Hobbs, and Daniel 1977]. Marginal spine arising from the anteroventral angle or border of… …   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

  • hepatic spine — See: carapace spine c [Martin, 2005]. A lateral spine situated near the anterior margin of the hepatic region on the carapace of certain shrimps; it probably represents the branchiostegal spine displaced posteriorly from the anterior margin of… …   Crustacea glossary

  • pterygostomial spine — (Order Decapoda): See: carapace spines (g) [McLaughlin, 1980]. (Order Decapoda): In shrimp like (natantian) decapod, anteriorly directed, spine like projection located below branchiostegal spine on anterolateral corner or carapace [Stachowitsch,… …   Crustacea glossary

  • linea branchiostegalis — Longitudinal groove or uncalcified line extending backwards from front margin of carapace slightly above branchiostegal spine and reaching to or beyond hepatic spine (e.g., palaemonid carideans) [Moore and McCormick, 1969]. Longitudinal groove or …   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

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