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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 20497 - 20508 of 41939

Entry Number: 20503

  • Nematode: Dorylaimus simplex
  • Host: Citrus sp. (Citrus) in/on Roots
  • Origin: Delmar, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 13
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 7k (6 female)

Entry Number: 20504

  • Nematode: Dorylaimus simplex
  • 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 7l (6 female)

Entry Number: 20505

  • Nematode: Dorylaimus simplex
  • Host: in/on Soil
  • Origin: Escalon, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Apr 03
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Xiphinema 4c (1 female)

Entry Number: 20506

  • Nematode: Dorylaimus simplex
  • Host: in/on Soil
  • Origin: Red Butte, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Feb 02
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 7m (3 female)

Entry Number: 20507

  • Nematode: Dorylaimus simplex
  • Host: (Orchard) in/on Soil
  • Origin: Beaumont, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1942 May 15
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 7n (4 female)

Entry Number: 20508

  • Nematode: Dorylaimus simplex
  • 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: Carcharolaimus 2b (1 female, 2 young)

Entry Number: 20509

  • Nematode: Dorylaimus simplex
  • 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 88a (2 female, 1 male)

Entry Number: 20510

  • Nematode: Dorylaimus simplex
  • Host: in/on Soil
  • Origin: Samsun, Turkey
  • Collector: Tekin Diker via Gerald Thorne
  • Date Collected: 1953
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 7o (8Y)

Entry Number: 20511

  • Nematode: Dorylaimus simplex
  • Host: in/on Soil (Garden)
  • Origin: Samsun, Turkey
  • Collector: Tekin Diker via Gerald Thorne
  • Date Collected: 1951-1952
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 7r (5 females)

Entry Number: 20512

  • Nematode: Dorylaimus diminutivus
  • Host: in/on Soil
  • Origin: Riverside, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1923
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 7b (4 females)

Entry Number: 20513

  • Nematode: Dorylaimus parvus
  • Host: Medicago sativa (Alfalfa) in/on Crowns
  • Origin: Medford, Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Mar 29
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 47b (8 female)

Entry Number: 20514

  • Nematode: Dorylaimus parvus
  • Host: in/on Soil (Summit sod)
  • Origin: Bald Mountain, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Jul 24
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 6 (1 female)