Data on 168 families from West Bengal, India, are analysed to test the following three theories for the inheritance of hypertrichosis of the ear rims: (1) Y-linkage, (2) autosomal dominance and (3) autosomal recessivity. The present data support the Y-linkage theory only. Most of the methods used are found in Slatis and Apelbaum [7], though some of them are modified here. Also, some association studies are carried out between age, hypertrichosis, chest hair and head baldness.