In the year 1883 the Museum procured some animals from Soekadana, collected by Mr. J. C. van Hasselt. Among them was a specimen of the rare Herpestes semitorquatus, recorded in the Catalogue du Museum d’Histoire naturelle, T. XI, p. 125. Gray’s type-specimen (Ann. Mag. Nat. Hist. 1846, p. 211) being sent by Lowe from Borneo, I was convinced that my specimen too came from Borneo: Soekadana lies in Southwestern-Borneo. There is, however, an other locality called Soekadana and lying in the Lampongs, Southern Sumatra. And now I discover by an accident that Mr. v. Hasselt in 1883 dwelled in Soekadana, Southern-Sumatra, so that our specimen of H. semitorquatus is from the latter locality and not from Borneo. Sumatra therefore — and that is the reason why I publish this observation — is a new locality for that species.