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Pseudoliparis swirei sp. nov.: A newly-discovered hadal snailfish (Scorpaeniformes: Liparidae) from the Mariana Trench

Lookup NU author(s): Dr Thomas Linley, Dr Alan Jamieson



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Pseudoliparis swirei sp. nov. is described from 37 individuals collected in the Mariana Trench at depths 6898–7966 m. The collection of this new species is the deepest benthic capture of a vertebrate with corroborated depth data. Here, we describe P. swirei sp. nov. and discuss aspects of its morphology, biology, distribution, and phylogenetic relationships to other hadal liparids based on analysis of three mitochondrial genes. Pseudoliparis swirei sp. nov. is almost certainly en- demic to the Mariana Trench, as other hadal liparids appear isolated to a single trench/ trench system in the Kermadec, Macquarie, South Sandwich, South Orkney, Peru-Chile, Kurile-Kamchatka and Japan trenches. The discovery of another hadal liparid species, apparently abundant at depths where other fish species are few and only found in low numbers, provides further evidence for the dominance of this family among the hadal fish fauna.

Publication metadata

Author(s): Gerringer ME, Linley TD, Jamieson AJ, Goetze E, Drazen JC

Publication type: Article

Publication status: Published

Journal: Zootaxa

Year: 2017

Volume: 4358

Issue: 1

Pages: 161-177

Online publication date: 28/11/2017

Acceptance date: 24/10/2017

Date deposited: 28/11/2017

ISSN (print): 1175-5326

ISSN (electronic): 1175-5334

Publisher: Magnolia Press


DOI: 10.11646/zootaxa.4358.1.7


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