Related Experiment Video
Updated: Feb 27, 2026

Eyestalk Ablation to Increase Ovarian Maturation in Mud Crabs
Published on: March 31, 2023
Formation and function of the "Xestoleberis-spot" in Xestoleberis hanaii (Crustacea: Ostracoda)
1School of Medicine, International University of Health and Welfare, Narita Campus, Kozunomori 4-3, Narita City, Chiba Prefecture, 286-8686, Japan.
Abstract:
The crescent sculpture of the so-called "Xestoleberis-spot" develops inside the calcified valve of the family Xestoleberididae. Electron microscopic observations on both, intermoult and postmoult stages of Xestoleberis species reveal that the "Xestoleberis-spot" system consists of three elements; two calcified chambers, a vesicle of electron-dense material and an uncalcified procuticle. The formation and function of the "Xestoleberis-spot" system are discussed. In conclusion, the "Xestoleberis-spot" system functions as the muscle attachment site for several antennal muscles, and provides the material for chitinous fibers in the exocuticle of outer lamella. The unique cuticular structures of the family Xestoleberididae are due to the "Xestoleberis-spot" system.
More Related Videos
Related Concept Videos
Diversity of Protists III
The Auditory Ossicles
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
Other Algae
Surface Appendages of Archaea

