Resilium

In anatomy, a resilium is part of the shell of certain bivalve mollusks. It is an internal ligament, which holds the two valves together and is located in a pit or depression known as the resilifer.

The resilium is part of the hinge mechanism in certain taxonomic families of bivalve shells, such as oysters and scallops.^[1]^[2]^[3] A resilium (and the resilifer, its associated contact point) is the primary structure comprising the type of bivalve hinge that is known as an "disodont" hinge.

References

^ "Bivalves - General Morphology". Paleontological Laboratory at SUNY Cortland. Archived from the original on 29 January 2020. Retrieved 13 October 2021.
^ Leal, J.H. "Bivalves" (PDF). Bailey-Matthews National Shell Museum. Archived from the original (PDF) on 10 April 2004. Retrieved 13 October 2021.
^ Dr. Burt Carter. "Invertebrate Paleobiology on-line syllabus on Bivalves". Georgia Southwestern State University. Archived from the original on 25 February 2020. Retrieved 13 October 2021.

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[1] "Bivalves - General Morphology". Paleontological Laboratory at SUNY Cortland. Archived from the original on 29 January 2020. Retrieved 13 October 2021.

[2] Leal, J.H. "Bivalves" (PDF). Bailey-Matthews National Shell Museum. Archived from the original (PDF) on 10 April 2004. Retrieved 13 October 2021.

[3] Dr. Burt Carter. "Invertebrate Paleobiology on-line syllabus on Bivalves". Georgia Southwestern State University. Archived from the original on 25 February 2020. Retrieved 13 October 2021.

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v t e Bivalve anatomy
Shell	Callus Hinge line Hinge teeth Ligament Lira Lunule Nacre Pallial line Pallial sinus Periostracum Prodissoconch Resilifer Resilium Sculpture Umbo Valve Beak Annuli
Other hard parts	Byssus Pearl Sea silk
Soft parts	Adductor muscles Ctenidium Gastric shield Mantle Nephridium Siphon
Other	Abductin Glochidium Pseudofeces Trochophore Veliger