The formation and development of the cylindrical bodies in the mammalian epididymis.
D000818:Animals; D004822:Epididymis / Q000166:cytology*; D007312:Eulipotyphla; D006168:Guinea Pigs; D000882:Haplorhini; D008297:Male; D012377:Rodentia; D012589:Sciuridae; D013094:Spermatozoa / Q000166:cytology*