Author: Ohara & Marinho, 2016
Comments: The type locality of <i>Moenkhausia parecis</i> is a small small "terra-firme igarapé" (= highland creek) with little preserved riparian vegetation and surrounded by large plantation fields (mostly soy and corn), near Vilhena, Mato Grosso.  This stream has 1.5-2.5 m width and and 0.3-0.8 m depth, clear water, swift currents, and a bottom composed of sand and dead leaves.  <i>M. parecis</i> forms small groups of 10-15 individuals, swimming in midwater.  It is syntopic with <i>Ancistrus verecundus</i>, <i>Bryconops piracolina</i>, <i>Cetopsorhamdia</i> sp. 3 (cf. Bockmann & Slobodian, 2013: 25), <i>Corydoras</i> sp., <i>Hyphessobrycon lucenorum</i>, <i>Hyphessobrycon aff. melonostichos</i> and <i>Pyrrhulina</i> sp. The stomach contents of four paratypes consisted of ants, scales, unidentified insect fragments, seeds, unidentified vegetal fragments and sediments (Ref. 109906).