Author: Eigenmann, 1909
FBname: Least pencilfish
Remark: The most recent distributional records were published by Weitzman & Weitzman (1982: Fig. 229). The most recent systematic description is by Weitzman & Cobb (1975). Occasionally exported as an aquarium fish with various small tetragonopterines and <i>Nannostomus espei</i>  from Guyana.  This species is now the second smallest species of <i>Nannostomus</i>, the smallest being <i>Nannostomus anduzei</i>. See Weitzman et al. (2001) and Bork & Mayland (1998).