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Amazon molly

Poecilia formosa (Girard, 1859)

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Open encyclopedia reference

The Amazon molly (Poecilia formosa) is a freshwater fish native to the warm waters of northeastern Mexico and the southern parts of the U.S. state of Texas. It reproduces through gynogenesis, and essentially all individuals are females. The common name of "Amazon molly," acknowledges this trait as a reference to the Amazon warriors, a female-run society in Greek mythology. The Amazon molly is a hybrid species, and its parent species are the sailfin molly (Poecilia latipinna) and the Atlantic molly (Poecilia mexicana). In 1932, this species was the first vertebrate confirmed to be capable of asexual reproduction.

Poecilia formosa gets its name from the Greek poikilos meaning "variegated" or "speckled," and the Latin formosa meaning "beautiful."

Wikipedia contributors, Amazon molly; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:56:46.111262+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Poecilia formosa (Girard, 1859)
Name authority
(Girard, 1859)
Common name
Amazon molly
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Cyprinodontiformes
Family
Poeciliidae
Genus
Poecilia
Extinction status
Not supplied by this source

Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderCyprinodontiformes
  11. familyPoeciliidae Bonaparte, 1831
  12. subfamilyPoeciliinae Bonaparte, 1831
  13. genusPoecilia Bloch & Schneider, 1801
  14. speciesPoecilia formosa (Girard, 1859)

Close classified relatives

These entries share the source’s genus, Poecilia. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Poecilia boesemani Poeser, 2003PoeciliidaeChordataAccepted speciesExtinction status not supplied
Pacific MollyPoecilia butleri Jordan, 1889PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia caucana (Steindachner, 1880)PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia caudofasciata (Regan, 1913)PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia dauli Meyer & Radda, 2000PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia elegans (Trewavas, 1948)PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia gillii (Kner, 1863)PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia koperi Poeser, 2003PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia sarrafae Bragança & Costa, 2011PoeciliidaeChordataAccepted speciesExtinction status not supplied
Mexican mollyPoecilia sphenops Valenciennes, 1846PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia teresae Greenfield, 1990PoeciliidaeChordataAccepted speciesExtinction status not supplied
Poecilia vandepolli Van Lidth de Jeude, 1887PoeciliidaeChordataAccepted speciesExtinction status not supplied

Browse 299 records assigned to Poeciliidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Mollienesia formosa (Girard, 1859) (Girard, 1859)synonym
Limia formosa Girard, 1859 Girard, 1859synonym

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. https://www.marinespecies.org/aphia.php?p=taxdetails&id=275347 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:4KSDG. Classification follows source parent identifiers. English common names may vary by region.