Published June 5, 2026 | Version v1

Gynodiastylis hartmeyeri Zimmer 1914

  • 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

Gynodiastylis hartmeyeri Zimmer, 1914

Holotype.

Australia • ♀; Western Australia, Sharks Bay [Shark Bay], nnö. der Nordspitze von Heirisson Prong [north-northeast of the north-tip of Heirisson Prong], Hamburger südwest-australische Forschungsreise 1905 exped., stat. 015; 11–12.5 m depth; 18 June 1905; J. Wilhelm Michaelsen leg.; Felsboden mit Korallen [rocky bottom with corals]; specimen heavily damaged, dried out, and glued to the bottom of the glass; it was rehydrated, but it is almost impossible to recognize; ZMH -K-016035.

Remarks.

Băcescu (1992) reported a “ female holotype ” deposited at the ZMB (not collection number given) with the same data as ZMH -K-016035. The ZMB Crustacea Collection does not include Zimmer’s material of Gynodiastylis hartmeyeri (personal communication Antje Schwiering and Kristina von Rintelen, ZMB). In Zimmer’s (1914) original description, no holotype was designated; however, the description was based on a single female specimen. The specimen deposited at the ZMH should be referred to as the holotype of Gynodiastylis hartmeyeri (ICZN Article 73, section 73.1. 2. holotype fixed by monotypy).

Diagnosis.

Carapace smooth and unornamented; eye lobe without lenses. Pereopod 1, propodus less than half carpus length. Pereopod 2 without hair-like setae. Pereopods 3–5, dactylus and terminal seta unmodified. Telson shorter than uropod peduncles, lateral margins smooth and without terminal setae. Uropod rami with terminal seta simple, and without fine hair-like setae; endopod tri-articulated, longer than exopod (after Gerken 2001).

Distribution.

East Indian Ocean, Australia, West Australia, 8–122 m depth (Băcescu 1992; Gerken 2001).

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

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Linked records

Additional details

Biodiversity

Collection code
ZMH
Material sample ID
ZMH-K-016035
Event date
1905-06-18
Verbatim event date
1905-06-18
Scientific name authorship
Zimmer
Kingdom
Animalia
Phylum
Arthropoda
Order
Cumacea
Family
Gynodiastylidae
Genus
Gynodiastylis
Species
hartmeyeri
Taxon rank
species
Type status
holotype
Taxonomic concept label
Gynodiastylis hartmeyeri Zimmer, 1914 sec. Mercado-Salas, Mühlenhardt-Siegel, Pereira & Garilao, 2026

References

  • Băcescu M (1992) Cumacea II (Fam. Nannastacidae, Diastylidae, Pseudocumatidae, Gynodiastylidae et Ceratocumatidae). Pars 8. In: Gruner H-E, Holthuis LB (Eds) Crustaceorum Catalogueus. SPB Academic Publishing The Hague, Netherlands, 175–468.
  • Gerken S (2001) The Gynodiastylidae (Crustacea: Cumacea). Memoirs of Museum Victoria 59 (1): 1–274. https://doi.org/10.24199/j.mmv.2001.59.1