Published June 5, 2026 | Version v1

Chalarostylis nyx Muhlenhardt-Siegel 2019

  • 1. Leibniz Institute for the Analysis of Biodiversity Change, Centre for Taxonomy and Morphology, Museum of Nature Hamburg, Zoology, Hamburg, Germany
  • 2. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental (DBBE), Buenos Aires, Argentina & Universidad de Buenos Aires – CONICET, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), Buenos Aires, Argentina
  • 3. Leibniz Institute for the Analysis of Biodiversity Change, Centre for Taxonomy and Morphology, Museum of Nature Hamburg, Zoology, Hamburg, Germany & Leibniz Institute for the Analysis of Biodiversity Change, Centre for Biodiversity Knowledge Science, Museum of Nature Hamburg, Zoology, Hamburg, Germany

Description

Chalarostylis nyx Mühlenhardt-Siegel, 2019

Fig. 28

Holotype.

North Atlantic Ocean • prep. ♀; Puerto Rico Trench, Vema-TRANSIT exped., FS Sonne stat. SO 237-14-2; 19°04.55'N, 67°07.86'W [19.07583, - 67.131; 19.07783, - 67.1295]; 4934 [4935.4–4928.3] m depth; 24 January 2015; Angelika Brandt leg.; epibenthic sledge; specimen dissected; ZMH -K-056191.

Paratypes.

* • ♂; Puerto Rico Trench, Vema-TRANSIT exped., FS Sonne stat. SO 237-14-1; 19°02.08'N, 67°09.44'W [19.03467, - 67.15733; 19.03517, - 67.157]; 4552 [4918.9–4921.1] m depth; 24 January 2015; Nils Brenke leg.; epibenthic sledge; specimen dissected mounted on a permanent slide; ZMH -K-046006. * • ♂; same data as ZMH -K-046006; ZMH -K-046007. * • prep. ♀; same data as holotype; dissected, mounted on a permanent slide; ZMH -K-046008. * • 1 m. + 2 prep. ♀♀; same data as holotype; ZMH -K-046009.

Diagnosis.

Carapace smooth, highly vaulted dorsally in posterior part (female); pseudorostral lobes straight, unserrated. Antenna 1, article 1 without finger-like prolongation on inner distal corner. Telson length 0.8 uropod peduncle length, with 1 pair of lateral setae and 3 terminal setae (after Mühlenhardt-Siegel 2019).

Distribution.

North Atlantic, Puerto Rico Trench, 4934– 4552 m depth.

Notes

Published as part of Mercado-Salas, Nancy F., Mühlenhardt-Siegel, Ute, Pereira, Emanuel & Garilao, Cristina, 2026, An annotated type catalogue and a fully digitised Crustacea collection of the Museum of Nature Hamburg, Zoology. Part I: Crustacea, Malacostraca, Peracarida, Cumacea, pp. 137-193 in Evolutionary Systematics 10 (1) on pages 137-193, DOI: 10.3897/evolsyst.10.187593

Files

Files (1.8 kB)

Name Size Download all
md5:1c71b10c7f2e9dcca4092358a0bee303
1.8 kB Download

System files (15.8 kB)

Name Size Download all
md5:ee139dee8185152d189cc47cef6bbd37
15.8 kB Download

Linked records

Additional details

Biodiversity

Collection code
ZMH
Material sample ID
ZMH-K-046006 , ZMH-K-046007 , ZMH-K-046008 , ZMH-K-046009 , ZMH-K-056191
Event date
2015-01-24
Verbatim event date
2015-01-24
Scientific name authorship
Muhlenhardt-Siegel
Kingdom
Animalia
Phylum
Arthropoda
Order
Cumacea
Family
Lampropidae
Genus
Chalarostylis
Species
nyx
Taxon rank
species
Type status
holotype , paratype
Taxonomic concept label
Chalarostylis nyx Muhlenhardt-Siegel, 2019 sec. Mercado-Salas, Mühlenhardt-Siegel, Pereira & Garilao, 2026

References

  • Mühlenhardt-Siegel U (2019) The Cumacea (Crustacea: Peracarida) from a North Atlantic Transect with RV " Sonne " with the description of ten new species. Zootaxa 4572: 1–75. https://doi.org/10.11646/zootaxa.4572.1.1