endosternite
Mesodermal tendonous plate below anterior part of alimentary canal (e.g., Notostraca); also firm calcareous plate between nerve cord and alimentary canal in anterior part of thorax in some crabs [Moore and McCormick, 1969].
(Order Notostraca):
Mesodermal tendonous plate below anterior part of alimentary canal; also firm calcareous plate between nerve cord and alimentary canal anteriorly in thorax of some decapods [McLaughlin, 1980].
(Order Decapoda):
In endoskeleton, one in a series of rigid structures projecting into body from ventral part (sternites) of exoskeleton. Serves also as site of muscle attachment (apodeme) and may be branched [Stachowitsch, 1992].
(Subclass Copepoda):
One head, one of two transverse skeletal elements arising from ventral surface (sternite) and forming internal skeleton (endoskeleton). Serves as site of attachment for muscles of antennae and mouthparts, one being located directly behind esophagus, the second in region of maxilla [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • Endosternite — En do*ster nite, n. [Endo + sternum.] (Zo[ o]l.) The part of each apodeme derived from the intersternal membrane in Crustacea and insects. [1913 Webster] || …   The Collaborative International Dictionary of English

  • endosternite — n. [Gr. endon, within; sternon, chest] 1. (ARTHROPODA) In various arthropods, an internal sclerotized ridge, plate or other process of the cephalic exoskeleton that functions for muscle and connective tissue attachment; sometimes called… …   Dictionary of invertebrate zoology

  • endosternite — en·do·sternite …   English syllables

  • endosternite — |en(ˌ)dō+ noun Etymology: International Scientific Vocabulary end + sternite : a part of the endoskeleton of an arthropod: a. : the part of one apodeme of a crustacean derived from the membrane between sternal plates b. : entosternite …   Useful english dictionary

  • Arachnid — Taxobox name = Arachnida image width = 250px image caption = Arachnida from Ernst Haeckel s Kunstformen der Natur , 1904 regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida classis authority = Cuvier, 1812… …   Wikipedia

  • Harvestman anatomy — Harvestmen are an order of arachnids, with which they share many characteristics: their body is divided into two body regions (tagmata), the abdomen and the opisthosoma; however, unlike in spiders, the juncture is often poorly defined. They have… …   Wikipedia

  • arachnid — arachnidan /euh rak ni deuhn/, adj., n. /euh rak nid/, n. 1. any wingless, carnivorous arthropod of the class Arachnida, including spiders, scorpions, mites, ticks, and daddy longlegs, having a body divided into two parts, the cephalothorax and… …   Universalium

  • skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… …   Universalium

  • head apodeme — Fused endopleurite and endosternite forming place for muscle attachment at anterior end of skeleton in Astacidea [Moore and McCormick, 1969]. Fused endopleurite and endosternite forming place for muscle attachment at anterior end of skeleton… …   Crustacea glossary

  • Paraphragma — Par a*phrag ma ( fr[a^]g m[.a]), n.; pl. {Paraphragmata}. [NL., fr. Gr. para beside + ?, ?, an inclosure.] (Zo[ o]l.) One of the outer divisions of an endosternite of Crustacea. {Par a*phrag mal}, a. [1913 Webster] …   The Collaborative International Dictionary of English

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