Light micrograph comparing males of N. henseni (on left) – specimen from the Grande River (FUR-D), and N. amazonicus (on right) – specimen from Uatumã River, State of Amazonas, Brazil.

 
 
  Part of: Perbiche-Neves G, Boxshall GA, Previattelli D, Nogueira MG, da Rocha CEF (2015) Identification guide to some Diaptomid species (Crustacea, Copepoda, Calanoida, Diaptomidae) of “de la Plata” River Basin (South America). ZooKeys 497: 1-111. https://doi.org/10.3897/zookeys.497.8091