pseudorostrum

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.

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  • 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

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  • 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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