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MVZ Mammal Collection (Arctos)

Specimen Records: 246,272
Media Records: 6,059
iDigBio Last Ingested Date: 2026-04-23

The MVZ mammal collection is the fourth largest in the United States and the second largest such collection associated with a U.S. academic institution. It contains over 228,000 skin, skull, skeleton and fluid-preserved specimens. Over 33,700 are also represented by frozen or fluid preserved tissues. The collection includes 364 type specimens, making it the fourth largest collection of such specimens in the US. Karyotype (chromosome) preparations are available for ca. 4,000 rodent specimens. These consist of slides of chromosome preparations and, in some cases, black and white photos and/or 35 mm negatives of chromosome spreads. The mammal collection also houses large series of lab-raised specimens from research by Francis B. Sumner, Richard D. Sage, and William Z. Lidicker.

Contacts

Name Chris Conroy
RoleStaff Curator of Mammals
Emailondatra@berkeley.edu
Name Chris Conroy
RoleStaff Curator of Mammals
Emailondatra@berkeley.edu
Name David Bloom
RoleVertNet Coordinator
Emaildbloom@vertnet.org
Name Dusty McDonald
RoleArctos Database Programmer
Emaildustymc@gmail.com
Name Eileen Lacey
RoleFaculty Curator of Mammals
Emailealacey@berkeley.edu
Name James Patton
RoleEmeritus Faculty Curator of Mammals
Emailpatton@berkeley.edu
Name Michael Nachman
RoleDirector and Faculty Curator of Mammals
Emailmnachman@berkeley.edu
Name Chris Conroy
RoleStaff Curator of Mammals
Emailondatra@berkeley.edu
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
idigbio_isocountrycode_added  i244638
99.337
dwc_continent_added  i241873
98.214
geopoint_datum_error  i224795
91.279
dwc_datasetid_added  i176242
71.564
dwc_parentnameusageid_added  i176242
71.564
dwc_taxonid_added  i176242
71.564
dwc_taxonomicstatus_added  i176242
71.564
dwc_taxonrank_added  i176242
71.564
gbif_canonicalname_added  i176242
71.564
gbif_genericname_added  i176242
71.564
gbif_taxon_corrected  i176242
71.564
gbif_vernacularname_added  i175513
71.268
dwc_scientificnameauthorship_added  i174307
70.778
dwc_multimedia_added  i170400
69.192
gbif_reference_added  i133206
54.089
geopoint_low_precision  i22909
9.302
rev_geocode_eez  i12602
5.117
taxon_match_failed  i2809
1.141
rev_geocode_mismatch  i1024
0.416
dwc_specificepithet_added  i820
0.333
dwc_family_replaced  i685
0.278
dwc_continent_replaced  i512
0.208
dwc_originalnameusageid_added  i116
0.047
dwc_class_replaced  i67
0.027
dwc_kingdom_replaced  i67
0.027
dwc_genus_replaced  i50
0.02
dwc_infraspecificepithet_added  i47
0.019
rev_geocode_corrected  i24
0.01
rev_geocode_lat_sign  i17
0.007
rev_geocode_failure  i8
0.003
dwc_country_replaced  i7
0.003
rev_geocode_lon_sign  i7
0.003
dwc_order_replaced  i6
0.002
geopoint_0_coord  i4
0.002
dwc_class_added  i2
0.001
rev_geocode_eez_corrected  i1
0