Graceful grenadier
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| Hymenocephalus gracilis Gilbert & Hubbs, 1920 |
The graceful grenadier (Hymenocephalus gracilis) is a species of rattail. It is found at depths of up to 345 m in tropical and subtropical seas worldwide.
This is one of the smallest of the rattails, growing to no more than 13 cm in length. It is a slender fish with a large mouth, with rows of tiny teeth, positioned in the underside of the head. 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.
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