| Hingemouth | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| 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 | |
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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.
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]
| Phractolaemus ansorgii |
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|---|---|
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