Australian Museum Journal The species of Pleuroxus and of three related genera (Anomopoda, Chydoridae) in southern Australia and New Zealand

Shortform:
Frey, 1991, Rec. Aust. Mus. 43(3): 291–372
Author(s):
Frey, David G.
Year published:
1991
Title:
The species of Pleuroxus and of three related genera (Anomopoda, Chydoridae) in southern Australia and New Zealand
Serial title:
Records of the Australian Museum
Volume:
43
Issue:
3
Start page:
291
End page:
372
DOI:
10.3853/j.0067-1975.43.1991.49
Language:
English
Date published:
12 December 1991
Cover date:
12 December 1991
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
CRUSTACEA: CLADOCERA; TAXONOMY
Digitized:
02 December 2008
Available online:
27 February 2009
Reference number:
49
EndNote package:
EndNote file
Title page:
Title page (84kb PDF)
Complete work:
Complete work (20342kb PDF)

Abstract

Two new chydorid cladoceran genera, Planicirclus (n.gen.) with one species Planicirclus alticarinatus (n.sp.), and Plurispina (n.gen.) with two species, Plurispina chauliodus (n.sp.) and P. multituberculata (n.sp.), are described from south-western Australia. The status of the chydorid genus Pleuroxus in southern Australia and New Zealand is reviewed, with two new species described: Pleuroxus foveatus (n.sp.) from south-western Australia, and P. helvenacus (n.sp.) from New Zealand. The European species Pleuroxus aduncus (Jurine), previously identified from the region, is described, and shown definitely not to occur there. Pleuroxus hastirostris Sars and P. inermis Sars are redescribed, as is Archepleuroxus baylyi Smirnov & Timms. Four other species of Pleuroxus described from southern Australia are considered nomina dubia. All eight recognised taxa appear to be endemic to the region. Marked differences between the Pleuroxus fauna of eastern and western Australia provide evidence for adaptive radiation. It is likely that a comparable high degree of endemicity will be found in other chydorid groups.