Species Gyliotrachela australis (Odhner, 1917)
Gyliotrachela australis. Height of shell: 3.2mm
© Copyright Dr John Stanisic BAAM Pty Ltd Queensland
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Species Gyliotrachela australis (Odhner, 1917)
Eastern Trumpetsnail
Compiler and date details
April 2012 - Dr John Stanisic
Generic Combinations
- Gyliotrachela australis (Odhner, 1917).
Taxonomic Decision for Subspecies Arrangement
- Pokryszko, B.M. 1996. The Gastrocoptinae of Australia (Gastropoda: Pulmonata: Pupilloidea): systematics, distribution and origin. Invertebrate Taxonomy 10: 1085-1150 [1117]
Introduction
Gyliotrachela australis was first described from the Chillagoe limestones in northeastern Queensland. Subsequently Solem (1981) described three related species from isolated limestone outcrops in the Northern Territory and the Kimberley, Western Australia. Pokryszko (1996) in a revision of the Australian Gastrocoptinae, considered that all these species were only ecovariants or subspecies of G. australis.
Distribution
States
Northern Territory, Queensland, Western Australia
Extra Distribution Information
Disjunct distribution on limestone outcrops in NE Qld, NT and N WA.
Australian Endemic.
IBRA
NT, Qld, WA: Central Kimberley (CK), Daly Basin (DAB), Einasleigh Uplands (EIU), Victoria Bonaparte (VB)
Distribution References
- Pokryszko, B.M. 1996. The Gastrocoptinae of Australia (Gastropoda: Pulmonata: Pupilloidea): systematics, distribution and origin. Invertebrate Taxonomy 10: 1085-1150
- Solem, A. 1981. Small land snails from northern Australia. 1. Species of Gyliotrachela Tomlin, 1930 (Mollusca : Pulmonata : Vertiginidae). Journal of the Malacological Society of Australia 5: 87-100
Ecological Descriptors
Terrestrial.
Extra Ecological Information
On limestone rocks.
Diagnosis
Shell tiny, dark brown, trochoid with a prominent peripheral angle and subperipheral sulcus; sculpture of spiral threads and weak axial growth threads; aperture ovate, last whorl trumpet-like and flared, detached from shell and deflected upward to varying degrees; rather delicate to strongly developed parietal and palatal teeth, accessory teeth occasionally present; umbilicus open; height to 2.8mm.
Diagnosis References
Pokryszko, B.M. 1996. The Gastrocoptinae of Australia (Gastropoda: Pulmonata: Pupilloidea): systematics, distribution and origin. Invertebrate Taxonomy 10: 1085-1150 [1117-1122]
General References
Pokryszko, B.M. 1996. The Gastrocoptinae of Australia (Gastropoda: Pulmonata: Pupilloidea): systematics, distribution and origin. Invertebrate Taxonomy 10: 1085-1150 [1117-1122]
Common Name References
Stanisic, J., Shea, M., Potter, D. & Griffiths, O. 2010. Australian Land Snails. A field guide to eastern Australian species. Mauritius : Bioculture Press Vol. 1 595 pp. [106] (Eastern Trumpetsnail)
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 11-Feb-2014 | PUPILLIDAE | 11-Feb-2014 | MODIFIED | |
| 24-Jul-2012 | 24-Jul-2012 | MODIFIED | ||
| 27-Jun-2012 | 27-Jun-2012 | MODIFIED | ||
| 12-Feb-2010 | (import) |