Published December 31, 2004 | Version v1
Taxonomic treatment Open

Ithyomus Bird, 2004, gen. nov.

Creators

Description

Ithyomus gen. nov.

Anarthrura: Bird, 2001: 27.

Type Species. Ithyomus conopygus sp. nov., by monotypy.

Diagnosis. Anarthrurid with well­developed pleon. Labrum conical, not laterally compressed. Mandible without molar (?) Maxillule endite with seven terminal spiniform setae. Maxilliped palp article­3 with three long inner setae; endite with one long seta. Cheliped propodus without lateral fold; fixed finger with two ventral setae. Pereopod 1–3 coxa with seta. Pereopod 4–6 merus, carpus and propodus with spiniform setae with complex tips, carpus with four of these. Pleopod exopod with setae on entire ventral and distal margin. Uropod exopod with three setae.

Etymology. From Greek ithys, meaning ‘straight’ and omos ‘upper arm’, alluding to the pseudocoxa­basis articulation.

Remarks. As with most diagnoses defining new monotypic genera it is provisional and will be tested if and when very similar species are recorded elsewhere. The combination of four spiniform pereopod carpal setae, three palp setae (article­3) and no cheliped propodal fold is unique.

Notes

Published as part of Bird, Graham, 2004, Tanaidacea (Crustacea) of the Northeast Atlantic: non­filiform species of Anarthruridae Lang from the Atlantic Margin, pp. 1-44 in Zootaxa 471 on page 17, DOI: 10.5281/zenodo.157876

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Linked records

Additional details

Biodiversity

Family
Anarthruridae
Genus
Ithyomus
Kingdom
Animalia
Order
Tanaidacea
Phylum
Arthropoda
Taxonomic status
gen. nov.
Taxon rank
genus
Taxonomic concept label
Ithyomus Bird, 2004

References

  • Bird, G. J. (2001) Tanaidacea of the Atlantic Margin: The AFEN surveys of 1996 and 1998, unpublished report to AFEN and UKOOA, February 2001.