The collection of Polychaeta obtained by Mr. Colman from St. Helena is described. There are thirty species and the empty tubes of three more. Four species are new. All the specimens are very small except Hermodice carunculata. The Polychaet [sic] fauna of St. Helena has affinities with the fauna of warm or tropical North Atlantic and Mediterranean ; it has little connection with the fauna of tropical West Africa and none at all with South Africa.