Term Name:	cytoskeletal calyx
Synonyms:
Definition:	A large cytoskeletal structure located at the posterior end of the perinuclear theca of a mammalian sperm head. The nucleus is tightly associated with the calyx, which contains calicin and basic cylicin proteins.
Ontology:	GO: Cellular Component [GO:0033150]    QuickGO    AmiGO