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UCM Amphibian and Reptile Collection (Arctos)

Specimen Records: 68,486
Media Records: 2,809
iDigBio Last Ingested Date: 2026-04-23

The UCM Herpetology collection spans 81 countries, with its geographic strength in taxa from Colorado, Mexico and the southwestern United States. The collection contains over 68,000 specimens, including over 22,000 from Mexico, which have been actively studied and cited in systematic herpetology publications over recent decades. Additionally, the whiptail lizards (genus <i>Aspidoscelis</i>) are particularly well represented, including over 12,000 fluid-preserved specimens and two hundred dry skulls. World-renowned herpetologists, Hobart M. Smith and T. Paul Maslin, as well as a number of their students and collaborators, were the major architects of this collection. R. Earl Olson's contribution of 3,800+ specimens recently expanded our taxonomic and geographic coverage, including new material from Minnesota and Haiti. Most recently, Julio A. Lemos-Espinal contributed 2,600 specimens from the northern Mexican states of Sonora, Chihuahua, and Coahuila.

Contacts

Name Emily Braker
RoleVertebrate Zoology Collections Manager
Emailemily.braker@colorado.edu
Name Emily Braker
RoleVertebrate Zoology Collections Manager
Emailemily.braker@colorado.edu
Name David Bloom
RoleVertNet Coordinator
Emaildbloom@vertnet.org
Name Emily Braker
RoleVertebrate Zoology Collections Manager
Emailemily.braker@colorado.edu
Name Dusty McDonald
RoleArctos Database Programmer
Emaildlmcdonald@alaska.edu
Name Christy McCain
RoleVertebrate Zoology Curator
Emailchristy.mccain@colorado.edu
Name Emily Braker
RoleVertebrate Zoology Collections Manager
Emailemily.braker@colorado.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  i66730
97.436
dwc_continent_added  i66613
97.265
geopoint_datum_error  i35835
52.325
dwc_datasetid_added  i30324
44.278
dwc_parentnameusageid_added  i30324
44.278
dwc_taxonid_added  i30324
44.278
dwc_taxonomicstatus_added  i30324
44.278
gbif_canonicalname_added  i30324
44.278
gbif_genericname_added  i30324
44.278
gbif_taxon_corrected  i30324
44.278
dwc_scientificnameauthorship_added  i30315
44.265
gbif_vernacularname_added  i29601
43.222
dwc_multimedia_added  i28855
42.133
dwc_taxonrank_replaced  i28734
41.956
geopoint_low_precision  i12130
17.712
gbif_reference_added  i10562
15.422
dwc_family_replaced  i4009
5.854
dwc_specificepithet_added  i3423
4.998
taxon_match_failed  i3197
4.668
dwc_originalnameusageid_added  i1982
2.894
rev_geocode_eez  i1928
2.815
dwc_class_added  i797
1.164
dwc_infraspecificepithet_added  i716
1.045
dwc_order_added  i700
1.022
dwc_continent_replaced  i635
0.927
dwc_phylum_replaced  i195
0.285
dwc_country_replaced  i192
0.28
dwc_kingdom_replaced  i184
0.269
rev_geocode_mismatch  i77
0.112
dwc_phylum_added  i35
0.051
dwc_family_added  i34
0.05
dwc_kingdom_added  i30
0.044
dwc_genus_added  i23
0.034
dwc_order_replaced  i22
0.032
dwc_genus_replaced  i12
0.018
rev_geocode_corrected  i11
0.016
rev_geocode_lon_sign  i11
0.016
dwc_class_replaced  i7
0.01
dwc_taxonrank_added  i5
0.007
dwc_taxonremarks_added  i2
0.003
rev_geocode_failure  i1
0.001