carapace spines

carapace spines
(Order Decapoda):
(a) antennal. On anterior margin slightly below orbit.
(b) branchiostegal. On or clsoe to anterior margin medially between antennal and pterygostomial spines. (c) hepatic. Below and posterior to lower branch of cervical groove. (d) infraorbital. On lower angle of orbit. (e) postorbital. At moderate distance posterior to middle of orbit. (f) postrostral. Immediately posterior to rostrum. (g) pterygostomial. On anterolateral angle. (h) suborbital. Slightly below and posterior to middle of orbit. (i) supraorbital. At moderate distance obliquely behind and above orbit; somtimes on postorbital carina [McLaughlin, 1980].

Crustacea glossary. . 2011.

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Look at other dictionaries:

  • carapace spines — (ARTHROPODA: Crustacea) Variously placed, sharp projections from the carapace …   Dictionary of invertebrate zoology

  • 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 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

  • 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

  • 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

  • suborbital spine — See: carapace spine (h) [Martin, 2005]. Spine on anterior margin or carapace [Butler, T.H.]. Spine on lower rim of orbit (Fig. 2) [Williams, 1984]. (Order Decapoda): See: carapace spines (h) [McLaughlin, 1980]. (Order Decapoda): Anteriorly… …   Crustacea glossary

  • antennal spine — See: carapace spine (a) [Martin, 2005]. See: carapace spines (a) [McLaughlin, 1980]. ( ) [Baba, 2005]. Anterior part of carapace, including ocular peduncles, based on Munidopsis. [Baba, 2005] A short spine usually present on or near the anterior… …   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

  • postorbital spine — See: carapace spine (e) [Martin, 2005]. Spine situated near the orbital margin posterior to the antennal spine (Fig. 2A) [Perez Farfante and Kensley, 1997]. The hindmost spine or tooth on the orbital margin in the Oxyrhyncha [Ingle, 1983]. (Order …   Crustacea glossary

  • postrostral spine — (Order Decapoda): See: carapace spines (f) [McLaughlin, 1980]. (Order Decapoda): In shrimp like (natantian) decapod, anteriorly directed, spine like projection on carapace directly behind rostrum [Stachowitsch, 1992] …   Crustacea glossary

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