IN 1878 I reported in a letter to Dr. Sclater, the existence of a species of Anoa in the Island of Mindoro, on the strength of an example of the Tamarao labelled Anoa depressicornis in a Museum at Manilla. Having since seen living specimens of the Celebean Anoa, I have no hesitation in affirming that the latter animal has not even a superficial resemblance to the Tamarao which I saw at Manilla. I have now no doubt that the Tamarao of the Manilla Museum is a buffalo,—not, however, an immature example of the common buffalo, as has been suggested, but a distinct species, with short flattened horns sloping directly backwards.