Search Specimens

OZCAM (Online Zoo-log-i-cal Col-lec-tions of Aus-tralian Muse-ums) pro-vides access to an online data-base of records aggre-gated from fau-nal col-lec-tions data-bases in Aus-tralian museums.

Occurrence record: Malacology:C.451520

Preserved specimen of Alcyna acia Cotton, 1948 | Tread Top Shell recorded on 1972-02-03


Data partner OZCAM (Online Zoological Collections of Australian Museums) Provider
Data resource Australian Museum provider for OZCAM
Institution code Australian Museum
Supplied institution code "AM"
Collection Australian Museum Malacology Collection
Supplied collection code "Malacology"
Catalog number C.451520
Other catalog numbers ["ecatalogue.irn:10448251","urn:catalog:AM:Malacology:C.451520"]
Occurrence ID
Record type Preserved specimen
Supplied basis "PreservedSpecimen"
Identified by Jansen, P.  
Collector Ponder, W.F.  
Supplied as "Ponder, W. F."
License CC-BY 3.0 (Au)
Presence/Absence PRESENT
Date identified 1992
Identification remarks ecatalogue.IdeConfidence: "Curatorial"; ecatalogue.IdeSpecimenQuality: "Good"; ecatalogue.IdeComments: "id extracted from texpress reg db. entered by: ianl 13/Jan/2006";


Event ID
Identification remarks ecatalogue.IdeConfidence: "Curatorial"; ecatalogue.IdeSpecimenQuality: "Good"; ecatalogue.IdeComments: "id extracted from texpress reg db. entered by: ianl 13/Jan/2006";
Occurrence date 1972-02-03
Date precision DAY


Scientific name Alcyna acia
Supplied scientific name "Alcyna acia Cotton, 1948"
Identified to rank species
Common name Tread Top Shell
Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Family Trochidae
Genus Alcyna
Species Alcyna acia
Name match metric exactMatch
Accepted name Alcyna acia Cotton, 1948
Scientific name authorship Cotton, 1948
Name parse type SCIENTIFIC
Name according to Cotton, 1948


Country Australia
State or Territory Western Australia
Latitude -34.966
Supplied as: "-34.966"
Longitude 118.183
Supplied as: "118.183"
Datum EPSG:4326
Verbatim locality South Point, S of Two Peoples Bay, near Albany.
Location remarks ecatalogue.LocCollectionEventLocal: "[MAL# 885 C] Australia, Western Australia, South Point, S of Two Peoples Bay, near Albany. (34° 58' 00" S, 118° 11' 00" E) 03/02/1972 - 03/02/1972, Ponder, W. F.(Collector)";
Coordinate precision 0.001
Coordinate uncertainty (in metres) 1000.0
Terrestrial true
Verbatim latitude 34° 58' 0" S
Marine false
Country Code AU
Verbatim longitude 118° 11' 0" E

Additional properties

dcterms:modified 2013/10/29
dcterms:type PhysicalObject
dcterms modified 2013/10/29
dcterms type PhysicalObject
verbatim uncertainty 100m-1km

User flagged issues 

    Data quality tests

    Test name Result
    Geodetic datum assumed WGS84 Warning
    Show/Hide 93 passed properties
    Show/Hide 7 missing properties
    Show/Hide 23 tests that have not been run

    Additional political boundaries information

    Area Management
    NRM Regions 2010 South Coast
    NRM Regions 2017 South Coast Region
    Area management
    National Landcare Program Management Units 2018 South Coast Region
    IMCRA 4 Regions Southwest Shelf Province
    IMCRA Meso-scale Bioregions WA South Coast
    States including coastal waters Western Australia (including Coastal Waters)
    Local Government Areas PSMA 2018 CITY OF ALBANY

    Environmental sampling for this location

    Occurrence Density 9955.0 frequency
    Species Richness 1983.0 frequency
    Precipitation - annual (Bio12) 795.8 mm
    Precipitation - coldest quarter (Bio19) 322.8 mm
    Precipitation - driest period (Bio14) 5.0 mm
    Precipitation - driest quarter (Bio17) 83.8 mm
    Precipitation - seasonality (Bio15) 50.4 mm
    Precipitation - warmest quarter (Bio18) 91.0 mm
    Precipitation - wettest period (Bio13) 29.2 mm
    Precipitation - wettest quarter (Bio16) 329.4 mm
    Radiation - annual mean (Bio20) 16.18 MJ/m2/day
    Radiation - seasonality (Bio23) 41.0
    Radiation - warmest quarter (Bio26) 22.46 MJ/m2/day
    Temperature - annual mean (Bio01) 15.74 degrees C
    Temperature - annual range (Bio07) 14.36 degrees C
    Temperature - coldest period min (Bio06) 8.6 degrees C
    Temperature - coldest quarter mean (Bio11) 12.66 degrees C
    Temperature - diurnal range mean (Bio02) 7.76 degrees C
    Temperature - driest quarter mean (Bio09) 18.62 degrees C
    Temperature - isothermality (Bio03) 0.54 %
    Temperature - seasonality (Bio04) 0.86
    Temperature - warmest period max (Bio05) 22.96 degrees C
    Temperature - warmest quarter (Bio10) 18.88 degrees C
    Temperature - wettest quarter mean (Bio08) 12.9800005 degrees C
    Moisture Index - annual mean (Bio28) 0.636
    Moisture Index - highest quarter mean (Bio32) 1.0