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Paedocypris progenetica

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Paedocypris progenetica
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Suborder: Cyprinoidei
Family: Paedocyprididae
Genus: Paedocypris
Species:
P. progenetica
Binomial name
Paedocypris progenetica

Paedocypris progenetica (also known as Indonesian Superdwarf Fish [3]) is a species of tiny cyprinid fish endemic to the Indonesian islands of Sumatra and Bintan where it is found in peat swamps and slow flowing blackwater streams.[2] It was discovered by Singaporean ichthyologist Heok Hui Tan in 2006. He has written a description of the fish along with another species of the same genus called Paedocypris micromegethes.

It is one of the smallest known fish in the world, together with species such as Schindleria brevipinguis, witb the females reaching a maximum standard length of 10.3 mm (0.41 in), and themales reaching a maximum st 9.8 mm (0.39 in) and the smallest known mature specimen, a female, measuring only 7.9 mm (0.31 in).[4] It held the record for the shortest known vertebrate until the frog Paedophryne amauensis was formally described in January 2012, and the parasitic males of the anglerfish Photocorynus spiniceps are only 6.2 millimetres (0.24 in) long.[5]

The fish's deit consists of small planktonic rotifers and cladocerans.

Anatomy

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Due to its size, the fishes' skeleton is very rudimentary. It's spine is made of 33 - 35 vertebrea and it has a roofless skull.

See also

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References

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  1. ^ "Paedocypris progenetica". IUCN Red List of Threatened Species.
  2. ^ a b Kottelat, Maurice; Britz, Ralf; Heok Hui, Tan; Witte, Kai-Erik (2005). "Paedocypris, a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate" (PDF). Proceedings of the Royal Society B. 273 (1589). The Royal Society: 895–899. doi:10.1098/rspb.2005.3419. PMC 1560243. PMID 16627273. Archived from the original (PDF) on 12 July 2009. Retrieved 26 October 2012.
  3. ^ Paedocypris progenetica - Indonesian Superdwarf Fish - iNaturalist https://www.inaturalist.org/taxa/613324-Paedocypris-progenetica}}
  4. ^ Busson, Frédéric; Froese, Rainer (15 November 2011). "Paedocypris progenetica". FishBase. Retrieved 13 January 2012.
  5. ^ "World's tiniest frogs found in Papua New Guinea". The Australian. 12 January 2012. Retrieved 19 September 2018.