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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 21385 - 21396 of 41945

Entry Number: 21387

  • Nematode: Dorylaimus obscurus
  • Host: Medicago sativa (Alfalfa field) in/on Soil
  • Origin: Loma, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1937 Sep 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 12m (3 females)

Entry Number: 21388

  • Nematode: Dorylaimus obscurus
  • Host: Medicago sativa (Alfalfa) in/on Crowns & Soil
  • Origin: Fallon, Nevada, USA
  • Collector: Gerald Thorne
  • Date Collected: 1937 Nov 10-11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 17f (5 females)

Entry Number: 21389

  • Nematode: Dorylaimus obscurus
  • Host: Citrus paradisi (Grapefruit) in/on Roots/Soil
  • Origin: Bard, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Apr 28
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88m1 (3 females)

Entry Number: 21390

  • Nematode: Dorylaimus obscurus
  • Host: Triticum sp. (Wheat) in/on Roots/Soil
  • Origin: Taylorsville, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Apr 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88n1 (8 females variants)

Entry Number: 21391

  • Nematode: Dorylaimus obscurus
  • Host: in/on Soil
  • Origin: Florence, South Carolina, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Aug 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Labronema 1d (2 females)

Entry Number: 21392

  • Nematode: Dorylaimus obscurus
  • Host: Malus sp. (Apple) in/on Roots/Soil
  • Origin: Berkeley, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 May 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Isolaimium 1 (1Y)

Entry Number: 21393

  • Nematode: Dorylaimus obscurus
  • Host: Cupressus & Buxus sp. & sp. (Cypress & Boxwood) in/on Roots/Soil
  • Origin: College Station, Texas, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Apr 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Diplogaster 1s (1 female & 1 male)

Entry Number: 21394

  • Nematode: Dorylaimus obscurus
  • Host: Delphinium sp. (Delphinium) in/on Roots/Soil
  • Origin: Portland, Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Apr 29
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88o1 (1 female)

Entry Number: 21395

  • Nematode: Dorylaimus obscurus
  • Host: Solanum sp. (Potato) in/on Roots/Soil
  • Origin: Kitzberg, Germany
  • Collector: Gerald Thorne
  • Date Collected: 1939 Aug 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88p1 (7 females variants)

Entry Number: 21396

  • Nematode: Dorylaimus obscurus
  • Host: Zea sp. (Corn) in/on Roots/Soil
  • Origin: Perry, Georgia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Sep 09
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Isolaimium 1a

Entry Number: 21397

  • Nematode: Dorylaimus obscurus
  • Host: Buxus sp. (Boxwood) in/on Roots
  • Origin: Tyler, Texas, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Jun 24
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88q1 (8 females)

Entry Number: 21398

  • Nematode: Dorylaimus obscurus
  • Host: in/on Soil
  • Origin: Midvale, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Nov
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 88r1 (10 females)