Xenisthmidae

Arrow wriggler

Tyson belos

Moves by wriggling body

• Tropical
• Regional distribution
• Marine fish
• Pacific Ocean
• Oceania
• Elongated
• Compressed cross-section
• Small
• Tropical fish

The arrow wriggler (Tyson belos), also known as Tyson's wriggler, is a species of fish in the monotypic genus Tyson of the Xenisthmidae (wriggler) family, which is regarded as a synonymous with the Eleotridae, Tyson's wriggler was discovered in 1983. It moves by wriggling, like other wrigglers. The genus is named for American ichthyologist Tyson R. Roberts; the specific epithet belos is Greek for "arrow".