Definitions

Articular knob

• A swelling or irregularity in the integument at a joint, as on either side of a chela at the base of the movable finger or between the abdominal somites at the juncture of the terga and the pleura. [Chace and Hobbs, 1969]
• Swelling or irregularity in the shell at a joint of an appendage, or between abdominal somites at the juncture of pleuron and tergum. [Butler, T. H.]

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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