Author: Mattox, Souza, Toledo-Piza & Oliveira, 2021
Comments: Specimens were collected from a small lake approximately 15 m wide and 35 m long, apparently isolated from the main channel of the rio Ipixuna and where the water level was low as sampling occurred during the dry season (September). It is possible that this lake connects to the main channel in the wet season. Collection was done near the shore at depths varying from 0.5–1.0 m, when the bottom was muddy with patches of leaf litter. Vegetation around the lake was composed mainly of dead logs and branches. Collected with the characiforms <i>Carnegiella marthae</i>, <i>Hemigrammus</i>  sp., <i>Hyphessobrycon rosaceus</i>. <i>Iguanodectes spilurus</i>, <i>Microcharacidium</i>  sp., <i>Nannostomus digrammus, Nannostomus eques</i>; the catfish <i>Amblydoras affinis</i>; the knifefishes <i>Brachyhypopomus beebei, Microsternarchus bilineatus</i>; the cichlids <i>Apistogramma cf. pulchra, Biotoecus opercularis</i> and <i>Crenicichla cyanotus</i> (Ref. 124594).