oral cone
(Subclass Cirripedia):
() [Anderson, 1980].
Lepas anatifera: left valve removed. [Anderson, 1980]
(Subclass Cirripedia):
() [Anderson, 1980].
Lepas anatifera: rostral view; and left valve and cirri removed. [Anderson, 1980]
(Subclass Cirripedia):
() [Anderson, 1980].
Balanus trigonus: oral cone, posterior view; and oral cone, lefft lateral view. [Anderson, 1980]
(Subclass Cirripedia):
Oral pyramid [Stachowitsch, 1992].
(Subclass Copepoda):
The conical or tubular mouth of siphonostomatoid copepods, formed by the anterior labrum and posterior labium [Boxshall and Halsey, 2004].

Crustacea glossary. . 2011.

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  • labrum — A bulbous structure lying next to the epistome and bordering the anterior margin of the oral opening. (Syn. upper lip) [Holdich and Jones, 1983]. An unpaired, flat segment of the cephalon that articulates with the clypeus, and anteriorly covers… …   Crustacea glossary

  • 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

  • maxilla — Appendage next behind maxillule serving functions in feeding and respiration. (Syn. second maxilla) [Moore and McCormick, 1969]. One of a pair of two sets gnathal appendages situated immediately posteroventral to mandibles [Hobbs and Jass, 1988] …   Crustacea glossary

  • maxillule — Cephalic appendages next behind mandible, serving as mouth part. (Syn. first maxilla, maxillula. In cirripeds, also termed inner maxilla) [Moore and McCormick, 1969]. First maxilla; mouthparts immediately posterior to mandibles [Brusca and Brusca …   Crustacea glossary

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