Recently Dr. I. KRISTENSEN, Director of the Caribbean Marine-Biological Institute at Curaçao, kindly donated to the Leiden Natural History Museum a small collection of fishes he collected during a 1961 visit to Trinidad. These specimens proved to be of considerable interest, providing new distributional data and even including two species not listed in my previous review of the freshwater fishes of the island (1960), and induced me to prepare the present paper. The opportunity has been taken in this paper to correct some errors and omissions in the review. The species discussed here are numbered in accordance with my 1960 enumeration, the numbers 2a and 68a being additions.