A note on the external genitalia of female squirrel monkeys (Saimiri sciureus)

Observations of six female squirrel monkeys, Saimiri sciureus, indicate that the appearance of the external genitalia is hormone-dependent. Estradiol benzoate induced opening of the vagina, swelling of the labia, enlargement of urethral papilla, and copious discharge of thick white vaginal secretion in ovariectomized females.