NYCTOPHILUS UNICOLOR, Tomes. Tasmanian Nyctophilus. Nyctophilus unicolor, ‘Tomes in Proce. of Zool. Soc., part xxvi. p. 33. «Art the specimens of this genus I have yet seen from Van Diemen’s Land,” says Mr. Tomes, “ differ remarkably from those of the mainland of Australia, in having the fur everywhere short and cottony, perfectly devoid of lustre, and unicoloured; that of the upper parts is of a dark olive-brown without any variation of tint, excepting that it is perhaps a little darker along the middle of the back than elsewhere ; beneath the fur is similar but paler in colour, with the tips of the hairs a little tinged with ash-colour ; this is the colour of the whole of the under parts, with the exception of a patch on the throat, which is whitish brown, dirty white, and occasionally pure white. «Tmmature examples often have the fur above and beneath of a very dark olive-brown, almost black. One specimen of this dark colour which I have examined has the spot on the throat almost pure white. «So far as I have been able to ascertain, this species is subject to very trifling variations, either in colour or size in the adult state; and the size agrees so closely with that of the species which I have called N. Gouldi, that 1 at first thought the great difference in the texture and colour of the fur was due to the difference of locality.” To this description I have nothing to add. The specimens in my collection were transmitted from Tasmania to this country by Ronald C. Gunn, Esq., a gentleman who has done much to enrich our know- ledge of natural history. The upper figure is of the natural size, the lower one somewhat reduced.