Species ID
OC-SP-0000779
Discovered
Phylum
Arthropoda
Species ID
OC-SP-0000779
Accepted Binomial Name
Libanius intonsus
Lowest Valid Taxon Name in WoRMS
Libanius intonsus
Lowest Known Rank
Species
Status
Discovered
Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Tanaidacea
Family
Arthruridae
Genus
Libanius
New Higher Taxon Rank
family;genus
New Higher Taxon Name
Arthruridae;Libanius
Date Identified
01/02/2025
Taxonomic Remarks
This large Libanius species appears as the basal taxon of the NZ clade. Libanius intonsus n. sp. is the only NZ arthrurid species that sometimes has scattered setules on the basis of pereopods 1–3, although these are also present in A. andriashevi and L. clisicola, possibly as plesiomorphies. Some specimens lack these structures, perhaps through loss during preservation or as variation. This species has similar cephalothorax proportions similar to those of L. tangaroa and a longer, more rounded pleotelson but can be distinguished from this and the other Libanius species by the more slender chela (≈ 2.7 L: W) and carpus of pereopods 2–3, and stouter merus of pereopods 4–6.
Received All Minimal Data for Discovery
01/01/2025
Etymology
From the Latin adjective intonsus, “unshaved,” alluding to the sparsely setulate pereopods 1–3.
Distribution
45.8717°S 171.0817°E, Chatham Rise (southern flank), NZEEZ, Southwest Pacific, 1676 m. Recorded from the Hikurangi Margin, Kaikoura Canyon, southern flank of the Chatham Rise, and Bounty Trough.
Scientific Name Authorship
Bird & Błażewicz, 2025
Associated References
https://doi.org/10.1038/s41598-025-91383-4
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