bio.wikisort.org - Animal

The hingemouth (Phractolaemus ansorgii) is a small freshwater fish that is found only in west central Africa, the sole member of the subfamily Phractolaeminae of the family Kneriidae.

Hingemouth
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Gonorynchiformes
Family:	Kneriidae
Subfamily:	Phractolaeminae Boulenger, 1901
Genus:	Phractolaemus Boulenger, 1901
Species:	P. ansorgii
Binomial name
Phractolaemus ansorgii Boulenger, 1901
Synonyms
Phractolaemus spinosus Pellegrin, 1925

The mouth can extend like a small trunk, thus the name, and has just two teeth, both in the lower jaw. The swim bladder has two compartments, and can function as a lung, allowing the hingemouth to survive in oxygen-poor environments.[1]

References

• "Phractolaemus ansorgii". Integrated Taxonomic Information System. Retrieved 11 March 2006.
• Froese, Rainer and Pauly, Daniel, eds. (2021). Species of Phractolaemus in FishBase. July 2021 version.
• Froese, Rainer; Pauly, Daniel (eds.) (202). "Phractolaemus ansorgii" in FishBase. July 202 version.

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