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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 20341 - 20352 of 41939

Entry Number: 20347

  • Nematode: Dorylaimellus porosus
  • Host: in/on Soil
  • Origin: Provo, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 May 06
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Amphidelus 1 (1 female)

Entry Number: 20348

  • Nematode: Dorylaimellus porosus
  • Host: Beta sp. (Beet) in/on Soil
  • Origin: Arvin, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 May 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 2i (2 female, 1 male)

Entry Number: 20349

  • Nematode: Dorylaimellus porosus
  • 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 58p (3 female)

Entry Number: 20350

  • Nematode: Dorylaimellus porosus
  • Host: in/on Soil
  • Origin: Idaho Falls, Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1945 Fall
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Paraphelenchus 1g (1 female)

Entry Number: 20351

  • Nematode: Dorylaimellus aequalis
  • 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: Dorylaimellus 3 (1 female, 2 male)

Entry Number: 20352

  • Nematode: Dorylaimellus aequalis
  • Host: Medicago sativa (Alfalfa) in/on Soil & Crowns
  • 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: Tylencholaimellus 3h (1 female)

Entry Number: 20353

  • Nematode: Dorylaimellus aequalis
  • Host: Medicago sativa (Alfalfa) in/on Crowns
  • Origin: Grand Junction, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Apr 18
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 3c (3 female)

Entry Number: 20354

  • Nematode: Dorylaimellus aequalis
  • Host: in/on Soil
  • Origin: Bald Mountain, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 Aug 15
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 3a (2 female)

Entry Number: 20355

  • Nematode: Dorylaimellus aequalis
  • 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: Dorylaimellus 3d (2 female)

Entry Number: 20356

  • Nematode: Dorylaimellus aequalis
  • 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: Dorylaimellus 3e (2 female)

Entry Number: 20357

  • Nematode: Dorylaimellus aequalis
  • Host: in/on Soil
  • Origin: Union, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1943 Jun 03
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 1e (1 female)

Entry Number: 20358

  • Nematode: Dorylaimellus aequalis
  • 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: Trichodorus 1j (2 female, 3 male)