Hyphessobrycon piorskii sp. n. ACICCAA 00698, paratype, 26.9 mm SL, Brazil: Maranhão State: Munim River basin; living specimen photographed immediately after collection BCICCAA 00089, paratype, 25.2 mm SL, Brazil: Maranhão State: Munim River basin; living specimen photographed immediately after collection (photographed by Felipe Ottoni).

 
 
  Part of: Guimarães EC, De Brito PS, Feitosa LM, Carvalho-Costa LF, Ottoni FP (2018) A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae). ZooKeys 765: 79-101. https://doi.org/10.3897/zookeys.765.23157