antennular somite
(Order Stomatopoda):
First true somite of head (cephalon); located between acron and second (antenna-bearing) somite. Bears pair of anteriorly directed antennules as well as dorsolateral antennular processes. Not covered by carapace, although rostrum may partially or entirely extend across it. (Syn. posterior dorsal plate) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • somite — A body segment, especially of the abdomen [Chace and Hobbs, 1969]. Body segment, as in abdominal somites 1 6 [Poore, 2004]. Body segment, especially of the abdomen [Butler, T.H.]. Division of body (head, thorax, abdomen) with exoskeleton… …   Crustacea glossary

  • antennular process — (Order Stomatopoda): Tapering dorsolateral extension on each side of first head somite (antennular somite) [Stachowitsch, 1992] …   Crustacea glossary

  • cephalic somite — One unit of cephalon bearing distnctive pair of appendages. (Syn. cephalomere) [McLaughlin, 1980]. Unit division of head region, generally recognized as one of five such parts which bear distinctive paired appendages (antennules, antennae,… …   Crustacea glossary

  • antennule — First cephalic appendage, usually with peduncle of three articles and two multiarticulate flagella (sometimes antenna 1) [Poore, 2004]. First pair of cephalic appendages (antenna 1) [Holdich and Jones, 1983]. First pair of feelers, or antennae… …   Crustacea glossary

  • brain — (Order Notostraca): Main concentration of nreve tissue in head; consists of supraesophagael ganglion (protocerebrum and deutocerebrum) and, posterior to mouth, tritocerebrum (ganglion of antennal somite). Continues posteriorly as ladder like… …   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

  • mesocerebrum — Ganglion of antennular somite. (Syn. deuterocerebrum) [McLaughlin, 1980]. Ganglion of antenular somite. (Syn. deuterocerebrum) [Moore and McCormick, 1969] …   Crustacea glossary

  • mesocerebrum — n. [Gr. mesos, middle; L. cerebrum, brain] (ARTHROPODA: Crustacea) Ganglion of antennular somite; deuterocerebrum …   Dictionary of invertebrate zoology

  • rostrum — (1) Anteriorly projecting, unpaired, usually rigid median extension of carapace between eyes or ocular peduncles; (2) anterior beaklike projection of valve margins overhanging incisure or notch (Ostracoda); (3) unpaired anteroventral plate of… …   Crustacea glossary

  • antenna — ( ) [Baba, 2005]. Antennal peduncle consisting of 5 articles, based on Uroptychus. [Baba, 2005] Mobile sensory appendages arising below the eyes at the front of the head. There are two pairs of these appendages, the first and second antennae. The …   Crustacea glossary

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