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