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USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It is currently directed and curated by Dr. Zafar A. Handoo with technical support from Steve Rogers. It is one of the largest and most valuable nematode collections in existence with over 49,200 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 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 21397 - 21408 of 41939

Entry Number: 21403

  • Nematode: Dorylaimus obscurus
  • Host: Citrus sp. (Citrus) in/on Roots
  • Origin: Riverside, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Dec 23
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88w1 (3 females)

Entry Number: 21404

  • Nematode: Dorylaimus obscurus
  • Host: Citrus sp. in/on Soil
  • Origin: Los Angeles County, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 71 (6 females)

Entry Number: 21405

  • Nematode: Dorylaimus obscurus
  • Host: Medicago sativa (Alfalfa field) in/on Soil
  • Origin: Westmoreland, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1942 Aug 20
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88x1 (5 females)

Entry Number: 21406

  • Nematode: Dorylaimus obscurus
  • Host: Olea sp. (Olive orchard) in/on Soil
  • Origin: Riverside, California, USA
  • Collector: I. J. Conduit via Gerald Thorne
  • Date Collected: 1944 Aug 04
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88y1 (2 females)

Entry Number: 21407

  • Nematode: Dorylaimus obscurus
  • Host: in/on Soil
  • Origin: Aberdeen, Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1944 Aug 7-8
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88z1 (5 females & 1Y)

Entry Number: 21408

  • Nematode: Dorylaimus obscurus
  • Host: Juglans sp. (Walnut orchard) in/on Soil
  • Origin: Santa Barbara, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1947 Nov
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88a2 (2 females & 1 male)

Entry Number: 21409

  • Nematode: Dorylaimus obscurus
  • Host: Artemisia sp. (Sage (brush?)) in/on Roots/Soil
  • Origin: Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1947 Aug 25
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88b2 (5 females)

Entry Number: 21410

  • Nematode: Dorylaimus obscurus
  • Host: Fragaria sp. (Strawberry bed (Wild)) in/on Soil
  • Origin: Waldport, Oregon, USA
  • Collector: W. D. Courtney via Gerald Thorne
  • Date Collected: 1947 Dec 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88c2 (4 females)

Entry Number: 21411

  • Nematode: Dorylaimus obscurus
  • Host: Poa secunda (Bluegrass (Sandberg)) in/on Soil
  • Origin: Coulee Dam, Washington, USA
  • Collector: Gerald Thorne
  • Date Collected: 1948 May 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88d2 (7 females & 1Y)

Entry Number: 21412

  • Nematode: Dorylaimus obscurus
  • Host: in/on Soil
  • Origin: Sanford, Florida, USA
  • Collector: Gerald Thorne
  • Date Collected: 1949 Mar
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Doryliamus 88e2 (4 females variants)

Entry Number: 21413

  • Nematode: Dorylaimus obscurus
  • Host: (Bean) in/on Roots/Soil
  • Origin: Loma, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1949 Sep 02
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88f2 (6 females)

Entry Number: 21414

  • Nematode: Dorylaimus obscurus
  • Host: (Miscellaneous plants) in/on Soil
  • Origin: Sanford, Florida, USA
  • Collector: Gerald Thorne
  • Date Collected: 1951 Jul
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88g2 (3 females)