\\|prōd.(ˌ)ō+\ noun (plural protocephala)
Etymology: New Latin, from prot- + cephalon
1. : the part of an insect embryo that consists of the prostomium and the first postoral somite
2. : the primitive arthropod head corresponding to the sensory as distinguished from the feeding portion of the head of higher forms — compare gnathothorax

Useful english dictionary. 2012.

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  • Protocephalon — Protocẹphalon   [zu griechisch kephale̅ »Kopf«] das, s, bei Gliederfüßern das vorderste Kopfsegment. Der im Protocephalon befindliche Teil des Oberschlundganglions, das Protocerebrum, ist Sitz der Zentren für die Verarbeitung der höheren… …   Universal-Lexikon

  • protocephalon — n. [Gr. protos, first; kephale, head] 1. (ARTHROPODA: Insecta) The procephalic part of the definitive head during evolutionary stages. 2. (ARTHROPODA: Crustacea) see acron …   Dictionary of invertebrate zoology

  • protocephalon — See: acron [Martin, 2005]. Anteriormost part of the body bearing eyes [Perez Farfante and Kensley, 1997]. See: acron [McLaughlin, 1980]. (Order Decapoda): Term applied to anteriormost region of head (cephalon), especially when this is free of… …   Crustacea glossary

  • protocephalon — pro·to·cephalon …   English syllables

  • acron — Anteriormost part of body carrying eyes, not considered to be true cephalic somite. (Syn. ophthalmic somite, presegmental region. (Some authors recognize as protocephalon anterior part of head) [Moore and McCormick, 1969]. Anteriormost part of… …   Crustacea glossary

  • 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

  • gnathocephalon — ˌ ̷ ̷(ˌ)thōˈsefəˌlän, lən noun Etymology: New Latin, from gnath + cephalon : the part of the insect head that lies behind the protocephalon, consists of several fused segments, and bears the mandibles and maxillae …   Useful english dictionary

  • gnathothorax — “+ noun Etymology: gnath + thorax : the thorax and the part of the head bearing the feeding organs of an arthropod regarded as one of the primary body regions compare protocephalon …   Useful english dictionary

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