Skip to main content

Search the Nematode Collection

USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It was subsequently directed and curated by Dr. Zafar Handoo. Current curators are Dr. Benjamin Waldo and Dr. Paulo Reis Vieira. It is one of the largest and most valuable nematode collections in existence with over 40,000 permanent slides and vials and a total repository of nematode specimens reaching several million. It includes over 1900 type specimens and the valuable and irreplaceable collections of Cobb-Steiner, Thorne, and others. Nematodes from worldwide and domestic sources are represented in the collection. The Collection and associated database provide important information for reference purposes and taxonomic research by U.S. and foreign scientists and a permanent repository for type and other specimens. This website provides a portal to search those specimens that have been cataloged to date and provides data on nematode hosts, occurrence, and distribution.

Displaying 25633 - 25644 of 41945 records

Entry Number: 25635

  • Nematode: Aphelenchoides clarus
  • Host: (Range country)
  • Origin: East of Baker (Range country), Montana, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 08
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-164

Entry Number: 25636

  • Nematode: Aphelenchoides clarus
  • Host: Pinus banksiana (Jack pine)
  • Origin: West of Brookings, South Dakota, USA
  • Collector: Gerald Thorne via R. B. Malek
  • Date Collected: 1967 May 08
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-165

Entry Number: 25637

  • Nematode: Aphelenchoides confusus
  • Host: Triticum aestivum (Wheat field)
  • Origin: State Line, Nebraska, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Mar 29
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Aphelenchoides 3 (5 female, Type Slide)

Entry Number: 25638

  • Nematode: Aphelenchoides confusus
  • Host: (Sod (Sandy loam)) in/on Soil
  • Origin: Rhame (by airport), North Dakota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 08
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: New genus 3a (1 female)

Entry Number: 25639

  • Nematode: Aphelenchoides confusus
  • Host: (Grass)
  • Origin: North of Downer, Minnesota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 05
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-167

Entry Number: 25640

  • Nematode: Aphelenchoides confusus
  • Origin: Fairmount, North Dakota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 05
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-136

Entry Number: 25641

  • Nematode: Aphelenchoides sp.
  • Host: Tritcum aestivum (Wheat field)
  • Origin: Winner, South Dakota, USA
  • Collector: Gerald Thorne via Leon Wood
  • Date Collected: 1966 Jun 16
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-168

Entry Number: 25642

  • Nematode: Aphelenchoides hamatus
  • Host: Iris sp. (Iris (scorch))
  • Origin: Brookings (SDSU. Hort. Gardens), South Dakota, USA
  • Collector: Gerald Thorne via R. B. Malek
  • Date Collected: 1964 Nov 11
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Aphelenchoides 5 (4 female, 2 male, Type Slide)

Entry Number: 25643

  • Nematode: Aphelenchoides hamatus
  • Origin: Brookings, South Dakota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1964 Nov 18
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Aphelenchoides 5a (2 male, 2 female, 1 young)

Entry Number: 25644

  • Nematode: Aphelenchoides hamatus
  • Host: Buchloe dactyloides (Buffalo grass)
  • Origin: Powder River Monument, Montana, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 09
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-169

Entry Number: 25645

  • Nematode: Aphelenchoides obtusus
  • Host: (Prairie sod) in/on Soil
  • Origin: West of Sidney, Montana, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 07
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-1412

Entry Number: 25646

  • Nematode: Aphelenchoides obtusus
  • Origin: Fairmont, Nebraska, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Mar 29
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Panagrolaimus 1m (1 female), Possibly related to slide TSD-1732