Definitions

Longitudinal septum

• In cirripeds (Balanomorpha), wall of tubes disposed normal to inner and outer laminae of compartment plate separating them.
  (syn. parietal septum) [Moore and McCormick, 1969]
• Partition disposed normal to inner and outer laminae of compartmental plate in some balanomorph cirripeds, resulting in longitudinal tubes.
  (pl. longitudinal septa) (syn. parietal tubes) [McLaughlin, 1980]
• (Taxon-specific: Subclass Cirripedia) Barnacle shell feature: in unstalked form, one in a series of longitudinal walls between inner and outer lamellae of compartmental plate. Septa are arranged perpendicular to lamellae and form canals (longitudinal tubes). (primary, secondary).
  (syn. parietal septum) [Stachowitsch, 1992]

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Citing this glossary: For individual definitions, please cite the specific author(s) of the definition.
To cite the glossary as a whole, please use:
Martin, J.W., N.D. Pentcheff, D. Striley, C. Perrodin, A.R. Wall, J. Wall, and J. Zieba (editors). Crustacea Glossary. Crustacea Department, Natural History Museum of Los Angeles County. Accessed: 21 Nov 2024. URL: https://research.nhm.org/glossary