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.

Look at other dictionaries:

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  • rostral plate — (ARTHROPODA: Crustacea) In malacostracan Phyllocarida, the anteriorly projecting, movably articulated, median extension of the carapace …   Dictionary of invertebrate zoology

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  • Rostral scale — The rostral scale, or rostral, in snakes and other scaled reptiles refers to the median plate on the tip of the snout that borders the mouth opening.Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing,… …   Wikipedia

  • plate — 1. [TA] In anatomy, a thin, relative flat, structure. SYN: lamina [TA]. 2. A metal bar perforated for screws applied to a fractured bone to maintain the ends in apposition. 3. The agar layer within a Petri dish or similar …   Medical dictionary

  • 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

  • rostral teeth — tooth like projections on the sides of the snout of Pristidae and Pristiophoridae. They lack a basal plate typical of other elasmobranch teeth and are made of orthodentine and vitrodentine with a pulp cavity filled with osteodentine …   Dictionary of ichthyology

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  • Neural plate — Neural Crest Latin lamina neuralis Carnegie stage …   Wikipedia

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