USDA Nematode Collection Database

The USDA Nematode Collection is one of the largest and most valuable nematode collections in existence. It contains over 49,000 permanent slides and vials, with a total repository of nematode specimens reaching several million, including Cobb-Steiner, Thorne, and other valuable collections. Nematodes contained in this collection originate from world-wide sources. The USDA Nematode Collection Database contains over 38,000 species entries. A broad range of data is stored for each specimen, including species, host, origin, collector, date collected and date received. All records are searchable and available to the public through the online database. The physical collection is housed at the USDA Nematology Laboratory in Beltsville, MD. Specimens are available for loan to scientists who cannot personally visit the collection. Please see the Policy for Loaning USDANC Specimens for more information on this process. Scientists and other workers are always welcomed and encouraged to deposit material into the collection.

Data and Resources

Field Value
accessLevel public
bureauCode {005:18}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 127e6975-956e-4081-b047-dfa99417089d
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2021-09-23
programCode {005:040}
publisher Agricultural Research Service
resource-type Dataset
source_datajson_identifier true
source_hash 8ef509bf8fbfd7ce169da3917d06cf08da096ad6
source_schema_version 1.1
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • geo
  • geoss
  • national
  • nematode
  • north-america
  • organisms
  • specimens
  • united-states
isopen True
license_id cc-zero
license_title Creative Commons CCZero
license_url http://www.opendefinition.org/licenses/cc-zero
maintainer Handoo, Zafar A.
maintainer_email zafar.handoo@usda.gov
metadata_created 2025-11-21T20:18:53.408163
metadata_modified 2025-11-21T20:18:53.408167
notes <p>The USDA Nematode Collection is one of the largest and most valuable nematode collections in existence. It contains over 49,000 permanent slides and vials, with a total repository of nematode specimens reaching several million, including Cobb-Steiner, Thorne, and other valuable collections. Nematodes contained in this collection originate from world-wide sources.</p> <p>The USDA Nematode Collection Database contains over 38,000 species entries. A broad range of data is stored for each specimen, including species, host, origin, collector, date collected and date received. All records are searchable and available to the public through the online database.</p> <p>The physical collection is housed at the USDA Nematology Laboratory in Beltsville, MD. Specimens are available for loan to scientists who cannot personally visit the collection. Please see the <a href="https://www.ars.usda.gov/ARSUserFiles/2279/Loan%20Policy.pdf">Policy for Loaning USDANC Specimens</a> for more information on this process.</p> <p>Scientists and other workers are always welcomed and encouraged to deposit material into the collection.</p>
num_resources 1
num_tags 11
title USDA Nematode Collection Database