Abstract
The Neotropical region harbors the most diverse freshwater ichthyofauna in the world, with many diminutive forms. Miniature fishes are those whose adults do not grow over 26 mm of standard length and include more than 210 Neotropical species, a third in the family Characidae. Priocharax is a genus from the Amazon with three of the smallest characids known, characterized mainly by the rete…