A Freeze-Fracture Study on Epididymal and Ejaculated Spermatozoa of Macaca Fascicularis

Observations on the distribution and organization of particles in spematozoa from the epididymis have been made on the opposum, Didelphis virginiana (4), the rat (6) the boar (7) and the brush-tailed opposum (8). To complement these observations the following study was made on a primate, Macaca fascicularis.