On the Bennelongia nimala and B. triangulata lineages (Crustacea, Ostracoda) in Western Australia, with the description of six new species

  • Koen Martens Royal Belgian Institute of Natural Sciences, Operational Directorate “Natural Environment”, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium
  • Stuart Halse Bennelongia Environmental Consultants, 5 Bishop Street, Jolimont WA 6014, Australia
  • Isa Schön Royal Belgian Institute of Natural Sciences, Operational Directorate “Natural Environment”, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium
DOI: https://doi.org/10.5852/ejt.2015.111
Keywords: Taxonomy, evolution, biodiversity, Western Australia, Pilbara

Abstract

The ostracod genus Bennelongia De Deckker & McKenzie, 1981 occurs in Australia and New Zealand. We redescribe B. nimala from the Northern Territory and describe six new species from Western Australia belonging to the B. nimala (five species) and B. triangulata sp. nov. (one species) lineages: B. tirigie sp. nov., B. koendersae sp. nov., B. pinderi sp. nov., B. muggon sp. nov., B. shieli sp. nov. and B. triangulata sp. nov. For six of these seven species, we could construct molecular phylogenies and parsimonious networks based on COI sequences. We tested for specific status and for potential cryptic diversity of clades with Birky’s 4 theta rule. The analyses support the existence of these six species and the absence of cryptic species in these lineages. Bennelongia triangulata sp. nov. is a common species in the turbid claypans of the Murchison/ Gascoyne region. Bennelongia nimala itself is thus far known only from the Northern Territory. Bennelongia tirigie sp. nov., B. pinderi sp. nov. and B. muggon sp. nov. occur in the Murchison/ Gascoyne region, whereas B. koendersae sp. nov. and B. shieli sp. nov. are described from the Pilbara. With the six new species described here, the genus Bennelongia now comprises 31 nominal species.

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Published
2015-02-03
How to Cite
Martens, K., Halse, S., & Schön, I. (2015). On the Bennelongia nimala and B. triangulata lineages (Crustacea, Ostracoda) in Western Australia, with the description of six new species. European Journal of Taxonomy, (111). https://doi.org/10.5852/ejt.2015.111
Issue
No. 111 (2015): On the Bennelongia nimala and B. triangulata lineages (Crustacea, Ostracoda) in Western Australia, with the description of six new species
Section
Zoology
Copyright (c) 2015 Koen Martens, Stuart Halse, Isa Schön

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