Pandalus is a genus of shrimp in the family Pandalidae. Members of the genus are medium sized and live on or near the seabed. Some species are the subject of commercial fisheries and are caught by trawling. One species, Pandalus montagui, lives in association with the reef-building polychaete worm, Sabellaria spinulosa.Their lifespan is typically three to five years, with sexual maturity being reached at an early age.