Among the zoological collections, made by Dr. H. ten Kate during his travels in the Malay Archipelago, which are now preserved in the Leyden Museum, are many fishes caught in fresh and brackish water. As it is a rare fact to become fishes from the above mentioned islands, I venture to give an enumeration of the different species; so this list will especially be a contribution to the knowledge of the geographical distribution of fishes in the East Indian Archipelago. The total number of fishes collected is 133, that of the species 15.