In a previous paper, published in the same series, Vol. 2 (1940), the author dealt with a small collection of snakes obtained by Dr. P. WAGENAAR HUMMELINCK in 1930 and 1936 on the islands off the Venezuelan coast and on the adjacent mainland. The present article reports on some specimens, chiefly from the Dutch islands of the Windward Group, presented by him to the Rijksmuseum van Natuurlijke Historie at Leiden in later years. Some notes are included on three specimens of Alsophis from the same area that were already present in the collections of this museum (indicated by M.L.). — The photographs were made by Dr. HUMMELINCK.