Species Iotula microcosmos (Cox, 1868)
Iotula microcosmos, dorsal view. Diameter of shell: 1.2 mm.
© Copyright John Stanisic BAAM Pty Ltd, Queensland
Iotula microcosmos, ventral view.
Iotula microcosmos, apertural view.
Museums
Regional Maps
Species Iotula microcosmos (Cox, 1868)
Minuscule Pinhead Snail
Compiler and date details
October 2013 - Dr John Stanisic
- Helix microcosmos Cox, J.C. 1868. A Monograph of Australian Land Shells. Sydney : Maddock 111 pp. [3] [nom. nov. for Helix microscopica Cox, 1864].
- Helix microscopica Cox, J.C. 1864. Catalogue of Australian Land Shells. Sydney : John Alex Engel 44 pp. [21] [non Helix microscopica Krauss, 1848].
Type data:
Syntype(s) AM C224 1 specimen, Stroud, NSW. - Helix kempseyensis Cox, J.C. 1872. Descriptions of a new volute and twelve new species of land-shells from Australia. Proceedings of the Zoological Society of London 1871: 643-647, pl. 52 [2 May 1872] [645].
Type data:
Syntype(s) AM C115679 9 specimens, East Kempsey, Macleay River, NSW; BMNH 1880.12.11.18–20 3 specimens, East Kempsey, Macleay River, NSW.
Taxonomic Decision for Synonymy
- 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. [565] (for synonymy of Helix kempseyensis Cox, 1872)
Generic Combinations
- Iotula kempseyensis (Cox, 1868).
- Iotula microcosmos (Cox, 1868).
Introduction
Iotula microcosmos is distinguished from the similar Pseudiotula eurysiana by the combination of tiny turreted shell and closed umbilicus. Common and widespread.
Distribution
States
New South Wales, Queensland
Extra Distribution Information
Narooma SE NSW to Eungella NP, ME QLD
IBRA
NSW, Qld: Central Mackay Coast (CMC), NSW North Coast (NNC), Sydney Basin (SB), South East Corner (SEC), South Eastern Queensland (SEQ)
Ecological Descriptors
Eucalyptus trees, litter-dwelling, rainforest, vine thicket.
Diagnosis
Shell minute, waxy to resinous brown, trochoidally turbinate to turreted with a high domed spire; protoconch with spiral cords, teleoconch sculpture of moderately spaced, coarse radial ribs and fine spiral threads; umbilicus almost closed by reflection of the columella; diameter 1.2mm.
Diagnosis References
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. [176] (Minuscule Pinhead Snail)
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 04-Dec-2018 | HETEROBRANCHIA | 23-Jul-2019 | MODIFIED | |
| 06-Feb-2014 | PUNCTOIDEA | 04-Feb-2014 | MODIFIED | Dr John Stanisic |
| 12-Feb-2010 | (import) |