| Xenisthmus chi | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Xenisthmidae |
| Genus: | Xenisthmus |
| Species: | X. chi |
| Binomial name | |
| Xenisthmus chi Gill & Hoese, 2004 |
|
Xenisthmus chi (Japan wriggler, chi xenisthmid) is a species of fish in the wriggler family, Xenisthmidae. Japan wrigglers are tiny and clear. Before Paedocypris progenetica and the dwarf goby (Pandaka pygmaea) were discovered, the Japan wriggler was the smallest known fish.