Definitions

Semi-open petasma

• The lateral lobes are flexable but folded, with the ventral costae distinctly turned ventromesially, delimiting relatively ample space extending from proximal to distal ends.
  See: Petasma   [Perez Farfante and Kensley, 1997]

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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: 8 Nov 2024. URL: https://research.nhm.org/glossary