Notoliparis kermadecensis

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Notoliparis kermadecensis
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Liparidae
Genus: Notoliparis
N. kermadecensis
Binomial name
Notoliparis kermadecensis
(Nielsen, 1964)

Notoliparis kermadecensis (from Greek: noton, back, and liparos, fat) is a species of snailfish (Liparidae) that lives in the deep sea. Endemic to the Kermadec Trench in the Southwest Pacific, it is hadobenthic with a depth range between 6,474 and 7,561 m (21,240–24,806 ft),[1] and can reach a standard length of up to 25.8 cm (10.2 in).[2]

It is among the deepest living fish; in the Southern Hemisphere only Echiodon neotes has been recorded deeper, at 8,200–8,300 m (26,900–27,200 ft).[1] A few species from the Northern Hemisphere have been recorded at similar or deeper depths than N. kermadecensis, including the snailfish Pseudoliparis amblystomopsis from the Kuril–Kamchatka and Japan Trenches.[1] These two species apparently share a common ancestor and occupy similar hadal depth ranges, yet they can only survive at immense pressure and are geographically isolated, and their evolutionary history remains enigmatic.[3] There are indications that the larvae of N. kermadecensis and other hadal snailfish spend time in the open water at relatively shallow depths, less than 1,000 m (3,300 ft).[4]


  1. ^ a b c Linley, T.D.; M.E. Gerringer; P.H. Yancey; J.C. Drazen; C.L. Weinstock; A.J. Jamieson (2016). "Fishes of the hadal zone including new species, in situ observations and depth records of Liparidae". Deep Sea Research Part I: Oceanographic Research Papers. 114: 99–110. doi:10.1016/j.dsr.2016.05.003.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2009). "Notoliparis kermadecensis" in FishBase. September 2009 version.
  3. ^ NIWA 2009
  4. ^ Gerringer, M.E.; A.H. Andrews; G.R. Huus; K. Nagashima; B.N. Popp; T.D. Linley; N.D. Gallo; M.R. Clark; A.J. Jamieson; J.C. Drazen (2017). "Life history of abyssal and hadal fishes from otolith growth zones and oxygen isotopic compositions". Deep Sea Research Part I: Oceanographic Research Papers. doi:10.1016/j.dsr.2017.12.002.