Author: Mattox, Britz, Souza, Casas, Lima & Oliveira, 2023
Comments: This species was found along banks of aquatic plants (e.g., <i>Elodea</i> sp.) in a blackwater pond approximately 10 × 5 m, separated during the dry season by only a few meters from the stream, with both connected in the rainy season. They were very abundant and found with the arowana tetra <i>Gnathocharax steindachneri</i>; the aphyoditeine tetra <i>Axelrodia stigmatias</i>; the tetras <i>Hemigrammus bellottii</i>, <i>H. microstomus</i>, <i>H. vorderwinkleri</i>, <i>Hyphessobrycon bentosi</i>, an unidentified <i>Hyphessobrycon</i> sp.; the freshwater hatchetfish <i>Carnegiella strigata</i>; the toothless characin <i>Curimatopsis macrolepis</i>; juvenile wolffish <i>Hoplias malabaricus</i>; the pencilfish <i>Nannostomus marginatus, Pyrrhulina</i> sp.; the miniature thorny catfish <i>Physopyxis lyra</i>; the callichthyid armoured catfishes <i>Megalechis picta, M. thoracata</i>; the loricariine armoured catfish <i>Rineloricaria</i> sp.; the bigeye cichlid <i>Acaronia nassa</i>; juvenile saddled cichlid <i>Aequidens tetramerus</i>; the pike cichlid <i>Crenicichla</i> sp. Despite sampling efforts in all mesohabitats other than the pond, this was not found in the main channel. In the 2021 expedition, the pond was littered with a large amount of garbage (e.g., bottles, plastic bags) (Ref. 128833).