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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 21877 - 21888 of 41939

Entry Number: 21883

  • Nematode: Leptonchus obtusus
  • 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: Leptonchus 2n (9 females)

Entry Number: 21884

  • Nematode: Leptonchus obtusus
  • Host: in/on Soil
  • Origin: Arrowrock Dam (Slide gulch), Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 Oct 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Pungentus 6a (1 female)

Entry Number: 21885

  • Nematode: Leptonchus obtusus
  • Host: in/on Soil
  • Origin: St. George, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 Mar 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Leptonchus 2s (8 females)

Entry Number: 21886

  • Nematode: Leptonchus obtusus
  • Host: Pinus contorta latifolia (Pine (Lodge pole)) in/on Roots/Soil
  • Origin: Horse Creek, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1933 Jun
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Leptonchus 2t (3 females)

Entry Number: 21887

  • Nematode: Leptonchus obtusus
  • Host: in/on Soil
  • Origin: Perry, Georgia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Feb 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Diplogaster 1t (1 female)

Entry Number: 21888

  • Nematode: Leptonchus obtusus
  • Host: in/on Soil
  • Origin: Vernal, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1948 May 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Amphidelus 10a

Entry Number: 21889

  • Nematode: Leptonchus fimbriatus
  • Host: in/on Soil (Limestone, silurian)
  • Origin: Mount Magog, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1925 Oct 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Leptonchus 4 (20 females & 1 male)

Entry Number: 21890

  • Nematode: Leptonchus fimbriatus
  • Host: in/on Soil
  • Origin: Wellsville Divide (Cache County), Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 May 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Leptonchus 4a (2 females)

Entry Number: 21891

  • Nematode: Leptonchus sp.
  • Host: in/on Soil
  • Origin: Molalla, Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1946 Jul 27
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Leptonchus 5 (5 females)

Entry Number: 21892

  • Nematode: Leptonchus sp.
  • Host: in/on Soil
  • Origin: Kobe, Japan
  • Collector: Gerald Thorne
  • Date Collected: prior 1918
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Rhabdolaimus 2 (1 specimen)

Entry Number: 21893

  • Nematode: Litonema sp.
  • Host: Citrus sinensis (Orange) in/on Soil
  • Origin: Riverside, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jul 31
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Litonema 1 (5 female Y)

Entry Number: 21894

  • Nematode: Litonema sp.
  • Host: Citrus sinensis (Orange grove) in/on Soil
  • Origin: Pomona, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1942 Jan 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Litonema 1a (5 female Y)