dorsal shield
(ECHINODERMATA: Asterozoa)
In Ophiurida, the ossicles along the mid-line of the aboral arm surface; dorsal arm plate.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • shield — n. [A.S. scyld, shield] 1. A dorsal cover; carapace; scutellum; scutum; clypeus. 2. (ARTHROPODA: Crustacea) In Decapoda, the anterior part of the cephalothorax of Paguridae. 3. (ARTHROPODA: Diplopoda) The second tergite. 4. (NEMATA) The… …   Dictionary of invertebrate zoology

  • shield-backed katydid — ▪ insect       any of a group of insects in the family Tettigoniidae (order Orthoptera) that are cricketlike in appearance, more than 2.5 cm (1 inch) long, and brown or black in colour. Their pronotum (dorsal surface of the prothorax) extends… …   Universalium

  • cephalic shield — Chitinous or more or less calcified covering of the head region, formed of fused tergites of cephalic somites, commonly having pleura [McLaughlin, 1980]. Chitinous, more or less calcified covering structure of head region formed of fused tergites …   Crustacea glossary

  • cephalic shield — 1. (ARTHROPODA: Crustacea) A chitinous, somewhat calcified covering of the head region formed of fused tergites of cephalic somites, commonly having pleura. 2. (MOLLUSCA: Gastropoda) In Opisthobranchia, an expanded thickening of the dorsal… …   Dictionary of invertebrate zoology

  • naupliar shield — (Subclass Copepoda): The expanse of the exoskeleton of an unspecified number of somites, uninterrupted by arthrodial membranes, and covering the dorsal and lateral part of the naupliar body [Ferrari and Dahms, in press] …   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 — Diagram of a prawn, with the carapace highlighted in orange A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods such as crustaceans and arachnids, as well as vertebrates such as… …   Wikipedia

  • Gharial — Taxobox name = Gharial status = CR status system = iucn2.3 image width = 250px regnum = Animalia phylum = Chordata classis = Sauropsida ordo = Crocodilia familia = Gavialidae genus = Gavialis species = G. gangeticus binomial = Gavialis gangeticus …   Wikipedia

  • Heterostraci — Taxobox name = Heterostraci image caption = Drepanaspis gemuendenensis , accompanied by the placoderm Tiaraspis subtilis fossil range = Silurian Devonian |regnum = Animalia phylum = Chordata classis = Heterostraci subdivision ranks = Orders… …   Wikipedia

  • Crocodile exoskeleton — The crocodile exoskeleton consists of the protective dermal and epidermal components of the integumentary system in animals of the order Crocodilia. It is a form of armour.tructure and anatomyThe epidermal exoskeleton of the alligator consists of …   Wikipedia

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