Heterandria formosa

Heterandria formosa
Adult female
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Poeciliidae
Genus: Heterandria
Species:
H. formosa
Binomial name
Heterandria formosa
Girard, 1859 [2]

Heterandria formosa (known as the least killifish, dwarf topminnow, mosqu or midget livebearer)[3] is a species of livebearing fish within the family Poeciliidae. This is the same family that includes familiar aquarium fishes such as guppies and mollies. Heterandria formosa is not as commonly kept in aquaria as these species. Despite the common name "least killifish", it belongs to the family Poeciliidae and not to one of the killifish families. H. formosa is one of the smallest fish species; the 1991 Baensch Aquarium Atlas listed it as the 7th smallest fish in the world,[4] and as of 2006 it remains the smallest fish species found in North America.[5][6]

  1. ^ NatureServe (2013). "Heterandria formosa". IUCN Red List of Threatened Species. 2013: e.T202395A18233162. doi:10.2305/IUCN.UK.2013-1.RLTS.T202395A18233162.en. Retrieved 20 November 2021.
  2. ^ Nicolas Bailly (2010). Bailly N (ed.). "Heterandria formosa Girard, 1859". FishBase. World Register of Marine Species. Retrieved May 29, 2012.
  3. ^ "Common names of Heterandria formosa". FishBase. Retrieved May 29, 2012.
  4. ^ Baensch, H. (1991). Baensch Aquarium Atlas. pp. 592–593. ISBN 3-88244-050-3.
  5. ^ Jason C. Chaney & David L. Bechler (2006). "The occurrence and distribution of Heterandria formosa (Teleostei, Poeciliidae) in Lowndes County, Georgia" (PDF). Georgia Journal of Science. 64 (2): 67–75. Archived from the original (PDF) on 2013-10-14.
  6. ^ Bennett, M.G.; Conway, K.W. (2010). "An overview of North America's diminutive freshwater fish fauna". Ichthyological Exploration of Freshwaters. 21 (1): 63.