Fishes from the Brantas-River, Java

In January of this year the collections of the Leyden Museum were increased by 21 fishes from the mouth of the Brantas-river, East Java, collected by Mr. J. Moll. I will give here an enumeration of the species, a total of 11, together with the corresponding material in our Museum. I must return many thanks to Professor Max Weber at Amsterdam for his kind assistance in the determination.