mouth cone

mouth cone
(Subclass Cirripedia):
Cone [Stachowitsch, 1992].
(Class Ostracoda):
In parasitic copepod, cone- or tube-shaped structure around mouth. Formed by extension of upper lip (labrum) and lower lip (labium); open basally to accommodate mandibles. (Syn. mouth tube siphon) [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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  • labium — See: metastoma [Martin, 2005]. Flat, non segmented, bilobed structure situated posterior to the oral opening. (Syn. paragnath, lower lip) [Holdich and Jones, 1983]. Paired, laminar mouth parts immediately posterior to the mandibles [Mauchline,… …   Crustacea glossary

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