rostral plate

rostral plate
A flat rostrum [Mauchline, 1984].
Anteriorly projecting, unpaired, movably articulated, median extension of carapace (e.g., Phyllocarida). See: rostrum, compound rostrum [Moore and McCormick, 1969].
(Subclass Phyllocarida):
Anteriorly projecting, unpaired, movably articulated, median extension of carapace; antennulary portion of cephalon [McLaughlin, 1980].
(Order Leptostraca):
Plate-like structure extending over head. Articulated with carapace and movable by series of muscles. (simple, with ventral kell and spine). (Syn. rostrum) [Stachowitsch, 1992].
(Subclass Cirripedia):
Rostrum [Stachowitsch, 1992].
(Subclass Mystacocarida):
Term applied to two anteromedian lobes of anterior (antennulary) part of head (cephalon) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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Look at other dictionaries:

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  • rostral angle — In cirripeds angle of plate directed toward rostrum [Moore and McCormick, 1969]. Intersection of basal and occludent margins of scutum in lepadomorph Cirripedia [McLaughlin, 1980]. (Subclass Cirripedia): Barnacle plate feature: in stalked form,… …   Crustacea glossary

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