cephalosome

cephalosome
Head region when this includes only somites bearing maxillipeds or gnathopods, or both [Moore and McCormick, 1969].
(Subclass Copepoda):
Head region with one or two fused thoracic somites (Copepoda) [McLaughlin, 1980].
(Subclass Copepoda):
One of three divisions (tagmata) of body (cephalosome, metasome, urosome); consists of head and one or two thoracic somites (thoracomeres) fused to it. Cephalosome and metasome together from prosome. (See also cephalothorax) [Stachowitsch, 1992].
(Subclass Copepoda):
The anterior tagma of the body in copepods, covered by the dorsal cephalic shield and comprising 5 cephalic somites and the first thoracic (maxilliped-bearing) somite [Boxshall and Halsey, 2004].

Crustacea glossary. . 2011.

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Look at other dictionaries:

  • Cephalosome — Ceph a*lo*some (s[e^]f [.a]*l[ o]*s[=o]m, n. [Cephalo + some body.] (Zo[ o]l.) The anterior region or head of insects and other arthropods. Packard. [1913 Webster] …   The Collaborative International Dictionary of English

  • cephalosome — n. [Gr. kephale, head; soma, body] (ARTHROPODA) The head region of an arthropod; in crustaceans, this includes only somites bearing maxillipeds or gnathopods, or both …   Dictionary of invertebrate zoology

  • céphalosome — (sé fa lo so m ) adj. Terme de zoologie. Se dit des poissons ayant le corps gros à la partie antérieure. ÉTYMOLOGIE    En grec, tête et corps …   Dictionnaire de la Langue Française d'Émile Littré

  • Copepoda — Copépodes …   Wikipédia en Français

  • cephalothorax — A fused dorsal covering resulting when the carapace extends dorsally and laterally and/or posteriorly and fuses dorsally with one or more thoracic segments [Brusca and Brusca, 2002]. All fused somites of the cephalon (head) and thorax, covered in …   Crustacea glossary

  • prosome — Anterior region of body, commonly limited behind by major articulation. In cirripeds large sac like body in position of head in front of (and rostral from) thoracic limbs, supporting trophi and commonly first cirri [Moore and McCormick, 1969].… …   Crustacea glossary

  • tagma — Major division of body (e.g., head, thorax, abdomen), each composed of varying number of somites. (Pl. tagmata) [McLaughlin, 1980]. Major division of body (e.g., head, thorax, abdomen), each composed of varying number of somites [Moore and… …   Crustacea glossary

  • Cephalo — Ceph a*lo [Gr. kefalh head.] A combining form denoting the head, of the head, connected with the head; as, cephalosome, cephalopod. [1913 Webster] …   The Collaborative International Dictionary of English

  • -some — ( s[=o]m). A combining form or suffix from Gr. sw^ma (gen. sw matos) the body; as in merosome, a body segment; cephalosome, etc. [1913 Webster] [1913 Webster] …   The Collaborative International Dictionary of English

  • cephalon — A term that refers to the head of a crustacean [Brusca and Brusca, 2002]. Anterior region of the body bearing the antennules, antennae, eyes, mandibles, maxillules, and maxillae [Holdich and Jones, 1983]. Anteriormost tagma, bearing eyes, mouth,… …   Crustacea glossary

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