described (Thompson, 1948, Occ. Pap. Bishop Mus. Honolulu, 19:197) is apparently restricted to the Precellariformes, on which group of birds it seems extremely rare.2. Pachyptila fosteri, Puffinus assimilis. The specimens of Ancistrona from these hosts each have several examples of a species of parasitic mite. These would seem to belong to genus Myialgopsis, recently described by J. Cooremann (1944). The only previo3. Phascogale tapoatafe. These specimens of Boopia were sent to Dr F.L. Werneck of S. Paulo who is writing a monograph of the Mammal Mallophaga. He has confirmed the identification of the species and says (translation from the French) "I am happy to hav4. Pigeon. These flies (Hippobpscidae) are Pseudolynchia maura Bigot and are believed to be an Old World species that has become cosmopolitan. Dr Oldroyd (Diptera Dept.) of this Museum is not certain whether this species has previously been recorded from 5. Sula serrator. I cannot be certain whether the specific identification of the Eidmaniella is correct. The types of this species in the Museum are all male and I have no other material from the type host.6. Western Thornbill. I have taken this to be Acanthiza inornata, one of the Sylviidae, but as the specimen is a Cuculoecus, restricted to the Cuculidae, I am wondering if my identification of the host is correct. If it is, then the specimen is almost c7. Cathartes skua. The austromenopon sp. and the Naunates sp. on this bird are stragglers from one of the Procellariformes. The straggling probably taking place either during collecting or by the skua feeding on the dead petrel shortly before its death.