Phallic length in millimeters of adult (≥ 30 months) intact males and females versus adult males and females gonadectomized prepubertally. Analysis of variance revealed that there were highly significant differences among the four groups (F = 21.74, df = 3, p<.0001). Post-hoc tests indicated that there was a significant sex difference between intact males and intact females in phallic length (Fisher PLSD, p<.0001), and between Intact Females and Ovariectomized Females in clitoral length (Fisher PLSD, p<.01). Prepubertal castration had no significant effect on penile length (Fisher PLSD, p=.36) Numbers indicate numbers of specimens per group. ♂ = Male ♀= Female