Phalloceros aspilosPhalloceros aspilos is a species of poeciliid fish native to Brazil.DistributionPhalloceros aspilos is found in Brazil in the Rio Parati-Mirim, in Rio de Janeiro.SizeThe females of this species grow to a total length of, while males remain smaller at.HabitatThe fish live in tropical freshwater, and are pelagic.EtymologyThe fish's name is from the Greek aspilos, meaning "stainless, without spots, or spotless"; this refers to the absence of the lateral spot.