As the reader will see from the head of this paper, the collections are principally made in the interior of the island and therefore almost entirely restricted to terrestrial and freshwater forms. Seven new species have been obtained, while many others are very interesting with regard to the geographical distribution. The few marine specimens, all belonging to common species, have been obtained by Dr. Hallier, the botanist of the expedition, on the Coast of Sambas and the opposite island Lemoekoetan.