A deep-sea fish has been identified by US scientists which was previously unknown to science. The bumpy snailfish (Careproctus colliculi) was first encountered with advanced underwater technology in 2019, swimming just above the seafloor. In fact, a snailfish holds the record for the deepest-dwelling fish,” MBARI says. MBARI researchers collected the individual—an adult female 9.2 cms (3.6 inches) long—for further study in the laboratory. “With features unlike other deep-sea snailfishes that MBARI had encountered offshore of California, Haddock reached out to Gerringer for more detailed analysis.