A case of combined living full-term intra- and extrauterine pregnancy is descriptionbed. Reference is made to two recently reported cases, also in women of an African race. An incidence of between one and five in a million pregnancies is computed, by reference to previously published reviews. The diagnosis and treatment, particularly the safety of leaving the extra-uterine placenta in situ, is discussed. This is borne out by the recovery of the author's case, even after infection and a most stormy convalescence.