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Recordset

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CHAS Malacology Collection (Arctos)

Specimen Records: 15,322
Media Records: 0
iDigBio Last Ingested Date: 2018-06-04

The Chicago Academy of Sciences’ malacology collection consists of freshwater, marine, and terrestrial Mollusca, as well as specimens representing Echinodermata, Porifera, Brachiopoda, and Cnidaria. It is the third largest in the state of Illinois with approximately 15,000 specimens, split mainly between gastropods and bivalves. Many specimens are associated with Academy collectors, e.g. William Stimpson (1832-1872) or Frank C. Baker (1867-1942). Other major collectors include Elizabeth Emerson Atwater, William Wirt Calkins, Ruthven Deane, J. H. Handwerk, R. L. Lea, Howard N. Lyon, E. N. King, J. W. Velie, Frank Morley Woodruff, and Mrs. E. C. Wiswall. The collection consists mainly of North American varieties of mollusk, with a strong regional focus on the Midwest. Approximately 24% of domestic lots originated in Illinois. Academy expeditions in the late 1800s and early 1900s contributed a significant number of specimens from California and Florida, while a number of specimens collected by William Stimpson came from the eastern coast of the United States. Additional specimens originated in Bermuda, the Bahamas, Mexico, China, Indonesia, and Japan. Collection includes 7 holotypes and 50 syntypes, and specimens were primarily collected pre-1945.

Contacts

Name Dawn Roberts
RoleDirector of Collections
Emaildroberts@naturemuseum.org
Name Dawn Roberts
RoleDirector of Collections
Emaildroberts@naturemuseum.org
Name Erica Krimmel
RoleAssistant Collections Manager
Emailekrimmel@naturemuseum.org
Name David Bloom
RoleCoordinator
Emaildbloom@vertnet.org
Name John Wieczorek
RoleInformation Architect
Emailtuco@berkeley.edu
Name Dawn Roberts
RoleDirector of Collections
Emaildroberts@naturemuseum.org
  • Data Corrected
  • Data Use
  • Raw
This table shows any data corrections that were performed on this recordset to improve the capabilities of iDigBio Search. The first column represents the correction performed. The last two columns represent the number and percentage of records that were corrected. A complete list of the data quality flags and their descriptions can be found here. Clicking on a data flag name will take you to a search for all records with this flag in this recordset.
FlagRecords With This Flag(%) Percent With This Flag
dwc_datasetid_added  i12349
80.597
dwc_parentnameusageid_added  i12349
80.597
dwc_taxonid_added  i12349
80.597
dwc_taxonomicstatus_added  i12349
80.597
dwc_taxonrank_added  i12349
80.597
gbif_canonicalname_added  i12349
80.597
gbif_genericname_added  i12349
80.597
gbif_taxon_corrected  i12349
80.597
dwc_scientificnameauthorship_added  i12063
78.73
idigbio_isocountrycode_added  i11924
77.823
gbif_reference_added  i9925
64.776
dwc_multimedia_added  i8114
52.957
gbif_vernacularname_added  i7719
50.379
dwc_originalnameusageid_added  i5332
34.8
dwc_continent_replaced  i3862
25.206
dwc_order_replaced  i2643
17.25
taxon_match_failed  i2270
14.815
dwc_specificepithet_added  i840
5.482
dwc_order_added  i831
5.424
dwc_family_added  i501
3.27
dwc_family_replaced  i454
2.963
dwc_genus_replaced  i395
2.578
geopoint_datum_missing  i318
2.075
dwc_genus_added  i305
1.991
dwc_specificepithet_replaced  i272
1.775
dwc_class_replaced  i252
1.645
dwc_phylum_replaced  i232
1.514
dwc_kingdom_suspect  i130
0.848
dwc_kingdom_added  i98
0.64
dwc_phylum_added  i84
0.548
dwc_taxonremarks_added  i82
0.535
dwc_class_added  i30
0.196
dwc_stateprovince_replaced  i23
0.15
dwc_infraspecificepithet_added  i21
0.137
dwc_country_replaced  i12
0.078
rev_geocode_eez  i11
0.072
dwc_kingdom_replaced  i1
0.007
specimen list