pseudorostrum
Anterior portion of gnathothorax in Cumacea, formed by pair of anterolateral parts of cephalic shield grown forward so as to meet medially in front of true rostrum [Moore and McCormick, 1969].
(Order Cumacea):
Anterior part of carapace formed by pair of forward projecting plates [McLaughlin, 1980].
(Order Cumacea):
Anterior projection of carapace formed by two adjoining pseudorostral lobes. (horizontal, upturned, reflexed; acute, blunt; simple, with long setae) [Stachowitsch, 1992].
(Order Decapoda):
In certain crab-like (brachyuran) decapods, anterior extension of carapace formed by fusion of two projecting teeth of frontal margin [Stachowitsch, 1992].

Crustacea glossary. . 2011.

Look at other dictionaries:

  • pseudorostrum — n. [Gr. pseudos, false; L. rostrum, bill] (ARTHROPODA: Crustacea) In Malacostraca Cumacea, paired forward projecting plates on the anterior carapace …   Dictionary of invertebrate zoology

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  • Iphinoe trispinosa — Taxobox | name = Iphinoe trispinosa image width = 240px regnum = Animalia phylum = Arthropoda subphylum = Crustacea classis = Malacostraca ordo = Cumacea familia = Bodotriidae subfamilia = Bodotriinae genus = Iphinoe species = I. trispinosa… …   Wikipedia

  • antennal notch — (Order Cumacea): On each side of carapace, notch in anterior border below pseudorostrum. Antennules and occasionally antennae project through antennal notch. Lower extension of notch termed anterolateral angle or corner. (deep, shallow). (Syn.… …   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

  • frontal lobe — (Order Cumacea): On dorsal surface of carapace, bell shaped prominence marking anterior margin of head. Bears ocular lobes anteriorly and is adjoined laterally and anteriorly by pseudorostrum [Stachowitsch, 1992] …   Crustacea glossary

  • siphon — (Order Cumacea): Tubular, exhalant respiratory structure consisting dorsally of pseudorostral lobes (pseudorostrum) of carapace and laterally of anteriorly directed lobes (according to interpretation: siphonal lobe of epipod or exopod) of first… …   Crustacea glossary

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