Dr. M. Greshoff, Director of the Colonial Museum at Haarlem, entrusted to me the other day some exotic Bats for identification. Among them there was a specimen from the West-Indies, apparently belonging to a hitherto undescribed species, besides a specimen of the splendid Kerivoula picta from Sumatra, Deli; it is the first specimen of this species I ever saw from this locality. Like the above mentioned specimens this, too concerning the habitat, so interesting individual forms now part of our collections thanks to the kindness of Dr. Greshoff.