Shrimpfish, also called razorfish, are five small species of marine fishes in the subfamily Centriscinae of the family Centriscidae. Shrimpfish are nearly transparent and flattened from side to side with long snouts and sharp-edged bellies. A thin, dark stripe runs along their bodies. These stripes and their shrimp-like appearance are the source of their name.
They swim in a synchronized manner with their heads pointing downwards. Adult shrimpfish are up to 20 cm (7.9 in) long, including their snouts. The banded bellowsfish more closely resembles members of the subfamily Macroramphosinae (especially Notopogon) in both behaviour and body shape, and reaches a length of up to 30 cm (12 in)