Nectoliparis pelagicus, the tadpole snailfish, is a species of snailfish native to the north Pacific Ocean where it can be found at depths down to 3,383 metres (11,099 ft) (though more commonly down to 238 metres (781 ft)). This species grows to a length of 6.5 centimetres (2.6 in) SL. This species is the only known member of its genus.