Graceful grenadier

The graceful grenadier is a species of rattail fish. It is found at depths of in tropical and subtropical seas worldwide.
This is one of the smallest of the rattails, growing to no more than in length. It is a slender fish with a large mouth, with rows of very small teeth, positioned in the underside of the skull. There is a short, thin chin barbel. It is more strikingly marked than most rattails, with bold black streaks on the head and black and silver barring over most of the body. There is a long bioluminescent organ with two lenses underneath the rear end of the body.