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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 20929 - 20940 of 41945 records

Entry Number: 20931

  • Nematode: Dorylaimus varicaudatus
  • Host: in/on Soil (Summit)
  • Origin: Longs Peak, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Jul 18
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 37a (7 females & 3 males)

Entry Number: 20932

  • Nematode: Dorylaimus varicaudatus
  • Host: in/on Soil
  • Origin: Red Butte, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1923 Dec
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 37c (6 males)

Entry Number: 20933

  • Nematode: Dorylaimus varicaudatus
  • Host: in/on Soil
  • Origin: Uintah Mountains (Elevation-11,300', Rockysee Pass), Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1923 Jul
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 37e (2 females & 3 males)

Entry Number: 20934

  • Nematode: Dorylaimus tenuidens
  • Host: in/on Soil (Mesquite)
  • Origin: Saint George, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Apr 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Nygolaimus 3c

Entry Number: 20935

  • Nematode: Dorylaimus tenuidens
  • Host: in/on Soil
  • Origin: Zion Canyon, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Apr 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 68 (2 females)

Entry Number: 20936

  • Nematode: Dorylaimus tenuidens
  • Host: Citrus sp. (Citrus) in/on Roots
  • Origin: Valencia, Spain
  • Collector: Gerald Thorne
  • Date Collected: 1926 Apr 08
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 67 (2 females)

Entry Number: 20937

  • Nematode: Dorylaimus tenuidens
  • 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: Tylencholaimus 2 (2 females)

Entry Number: 20938

  • Nematode: Dorylaimus tenuidens
  • Host: Covillea tridentata (Larrea) in/on Roots/Soil
  • Origin: Littlefield, Arizona, USA
  • Collector: Gerald Thorne
  • Date Collected: 1934 Mar 15
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 38 (6 females)

Entry Number: 20939

  • Nematode: Dorylaimus tenuidens
  • Host: in/on Soil
  • Origin: Riverside, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 Feb 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 38a (2 females & 2 males)

Entry Number: 20940

  • Nematode: Dorylaimus tenuidens
  • 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 118b (3 females)

Entry Number: 20941

  • Nematode: Dorylaimus tenuidens
  • Host: Beta sp. (Beets) 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: Nothotylenchus 1c (1 female)

Entry Number: 20942

  • Nematode: Dorylaimus tenuidens
  • Host: in/on Soil
  • Origin: Prosser, Washington, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Apr 28
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 38b (2 females)