The incisurae Santorini are two of three fissures in the anteroinferior wall of the cartilaginous external auditory canal.1Their importance as a point of breakthrough of parotid infection, especially an abscess, is stressed in most standard ear, nose, and throat textbooks.2Such an occurrence is, however, rarely seen. This report concerns a 2½-year-old girl in whom such a sequence of events took place, plus the development of periauricular cellulitis and a subtemporal abscess. Of additional interest is the fact that the infecting organism was of the Bacteroides group, not usually thought of in relation to ear conditions. Recovery followed surgical and massive antibiotic therapy, particularly the use of terramycin. REPORT OF A CASE D. B., a 31-month-old white girl, was first seen in November, 1950, with the chief complaint of a swelling of the left side of the face and head, of two weeks' duration. Her mother stated