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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 19933 - 19944 of 41939

Entry Number: 19939

  • Nematode: Chiloplacus contractus
  • Host: Beta saccharifera (Sugarbeet) in/on Soil
  • Origin: Fort Collins, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1934 Sep 04
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 1l (1 female)

Entry Number: 19940

  • Nematode: Chiloplacus contractus
  • Host: (Alpine plants) in/on Roots/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: Panagrolaimus 6p (1 female)

Entry Number: 19941

  • Nematode: Chiloplacus contractus
  • Host: in/on Soil
  • Origin: Wellsville Divide, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 May 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Tylenchus (1 female)

Entry Number: 19942

  • Nematode: Chiloplacus contractus
  • Host: Leucanthemum superbum (Daisies (Shasta)) in/on Roots/Soil
  • Origin: Salt Lake City, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1933 Apr 12
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 1m (3 male, 1 young)

Entry Number: 19943

  • Nematode: Chiloplacus contractus
  • Host: in/on Soil
  • Origin: Salem, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1933 May 01
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 1o (6 female)

Entry Number: 19944

  • Nematode: Chiloplacus contractus
  • Host: in/on Soil
  • Origin: Shafter, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 May 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Trichodorus 1h (2 female)

Entry Number: 19945

  • Nematode: Chiloplacus contractus
  • Host: in/on Soil
  • Origin: West Jordan, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 Nov 25
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 1p (5 female)

Entry Number: 19946

  • Nematode: Chiloplacus denticulatus
  • Host: (Aspen) in/on Roots
  • Origin: Alpine Canyon, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1924
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 2

Entry Number: 19947

  • Nematode: Chiloplacus denticulatus
  • Host: Artemisia sp. (Sage (brush?)) in/on Soil
  • Origin: Strawberry Valley, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1924
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 2a

Entry Number: 19948

  • Nematode: Chiloplacus denticulatus
  • Host: (Moss) in/on Soil (Damp)
  • Origin: Kaibab Forest, Arizona, USA
  • Collector: Gerald Thorne
  • Date Collected: 1932 Sep 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Chiloplacus 2b (5 female, 2 male)

Entry Number: 19949

  • Nematode: Chiloplacus denticulatus
  • Host: in/on Soil
  • Origin: Bells Canyon, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Jul 04
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Iota 1f (1 female)

Entry Number: 19950

  • Nematode: Chiloplacus incurvus
  • Host: (Poplar (Lombardy-decaying)) in/on Bark
  • Origin: Salt Lake City, Utah, USA
  • Collector: Gerald Thorne
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Lost