Australian Museum Journal The Glacidorbidae (Mollusca: Gastropoda: Heterobranchia) of Australia

Shortform:
Ponder and Avern, 2000, Rec. Aust. Mus. 52(3): 307–353
Author(s):
Ponder, Winston F.; Avern, G. J.
Year published:
2000
Title:
The Glacidorbidae (Mollusca: Gastropoda: Heterobranchia) of Australia
Serial title:
Records of the Australian Museum
Volume:
52
Issue:
3
Start page:
307
End page:
353
DOI:
10.3853/j.0067-1975.52.2000.1318
Language:
English
Date published:
13 December 2000
Cover date:
13 December 2000
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
MOLLUSCA: GASTROPODA
Digitized:
13 December 2000
Available online:
13 December 2000
Reference number:
1318
EndNote package:
EndNote file
Title page:
Title page (9kb PDF)
Complete work:
Complete work (2462kb PDF)

Abstract

The heterobranch gastropod family Glacidorbidae (?Pulmonata) is known only from temperate Australia and Chile. The Australian taxa are reviewed and three new genera, Benthodorbis, Striadorbis and Tasmodorbis are described based on differences in their shells, especially the protoconchs, and in their opercula and radulae. Nineteen species of Australian glacidorbids are recognised, all but four of them new. Of the four Australian species previously included in Glacidorbis, only two, G. hedleyi (Iredale) from New South Wales and Victoria, and G. occidentalis Bunn & Stoddart from south Western Australia, are retained in that genus. Eleven new species of Glacidorbis are described, seven from Tasmania (G. bicarinatus, G. catomus, G. atrophus, G. decoratus, G. costatus, G. tasmanicus and G. circulus), one (G. isolatus) from New South Wales, two (G. otwayensis and G. rusticus) from Victoria and one (G. troglodytes) from South Australia. Striadorbis contains the Tasmanian S. pedderi (Smith), and two new species, S. spiralis from western Victoria and S. janetae from Tasmania. Benthodorbis contains two species, both from old lakes in Tasmania; B. pawpela (Smith) from Great Lake and B. fultoni from Lake Sorell. Tasmodorbis contains a single species found in western Tasmania, T. punctatus, unique in having internal shell pores. Glacidorbis costatus is known only from Pulbeena Swamp in NW Tasmania and appears to be recently extinct, possibly as a result of draining of the swamp in the early part of this century. A cladistic analysis with the South American member of the family, Gondwanorbis, as the outgroup, supports the monophyly of the genera recognised.