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New species of Hebefustis Siebenaller & Hessler 1977 (Isopoda, Asellota, Nannoniscidae) from the Clarion Clipperton Fracture Zone (equatorial NE Pacific)

Kaiser, Stefanie. 2014 New species of Hebefustis Siebenaller & Hessler 1977 (Isopoda, Asellota, Nannoniscidae) from the Clarion Clipperton Fracture Zone (equatorial NE Pacific). Zootaxa, 3784 (2). 101-119. 10.11646/zootaxa.3784.2.1

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Abstract/Summary

Macrofaunal collections obtained during the French-German BIONOD expedition to the Clarion Clipperton Fracture Zone (CCFZ), equatorial NE Pacific, in spring 2012 yielded two new nannoniscid species, Hebefustis juansenii sp. n. and H. vecino sp. n., which are described in the current paper. The number and position of posterolateral spines of the pleotelson distinguishes the two new species from all other species in the genus. Both species are similar to each other differ, though, in the length of maxilliped epipodite, the presence of a robust spine on pereonite 2 (in H. juansenii sp. n.) as well as the shape of pereonite 4 anterior margin. They also resemble H. primitivus Menzies, 1962 but can be differentiated from the latter by the shape of lateral margins of pereonites 1–4 and the setation and shape of male pleopod 1. A distribution map and a taxonomic key to all known species in the genus are provided, as well as a checklist of known nannoniscid species from the Pacific is presented.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.11646/zootaxa.3784.2.1
ISSN: 1175-5326
Additional Keywords: Janiroidea, Hebefustis, new species, macrobenthos, distribution, abyssal, polymetallic nodules
Date made live: 24 Apr 2014 15:50 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/507137

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