collar [FBbt_00000044]
Specialization of the chorion that forms the border of the operculum. The operculum opens during hatching by splitting of the eggshell along the collar.
collar
ID: FBbt_00000044
Anatomy
Specialization of the chorion that forms the border of the operculum. The operculum opens during hatching by splitting of the eggshell along the collar.
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