frontal plate

frontal plate
Modified rostrum of brachyuran decapods which bears downward projection process between antennules that unites with epistome [Moore and McCormick, 1969].
(Order Anostraca):
Clypeus [Stachowitsch, 1992].
(Order Decapoda):
In carapace of crab-like (brachyuran) decapod, modified rostrum which bears downwardly directed process united with ventral epistome [Stachowitsch, 1992].
(Subclass Copepoda):
In parasitic copepod, plate-like structure at anterior end of head; formed by fusion of frontal margin with bases of antennules. Bears pair of suckers (lunules) [Stachowitsch, 1992].
(Infraorder Brachyura):
Modified rostrum with downward projecting process united with epistome [McLaughlin, 1980].
(Order Euphausiacea):
Somewhat extended anterior margin of carapace. (short and triangular, truncate) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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  • frontal lamina — (Order Isopoda): A sternal plate arising between the bases of the antennae and probably homologous to the epistome of their arthropods; in many isopods the frontal lamina may extend anteriorly to be visible in the dorsal aspect; in many Valvifera …   Crustacea glossary

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