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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 19897 - 19908 of 41945

Entry Number: 19899

  • Nematode: Cephalobus persegnis
  • Host: in/on Soil
  • Origin: Portland (Northwest Bulb Company/ McKay collection), Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Aug 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Cephalobus 4c (14 female, 15 male)

Entry Number: 19900

  • Nematode: Cephalobus persegnis
  • 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: Cephalobus 4d (1 female)

Entry Number: 19901

  • Nematode: Cephalobus persegnis
  • Host: Narcissus sp. (Daffodils) in/on Soil
  • Origin: Brookings, Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 Feb 27
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Cephalobus 4e (2 female)

Entry Number: 19902

  • Nematode: Cephalobus persegnis
  • Host: in/on Soil
  • Origin: Nhill, Oregon, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Jul 13
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Cephalobus 4f (2 female)

Entry Number: 19903

  • Nematode: Cephalobus persegnis
  • Host: Artemisia sp. (Sage (brush?)) in/on Soil
  • Origin: Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1947 Aug 25
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Rotylenchus 1y (1 female)

Entry Number: 19904

  • Nematode: Cephalobus persegnis
  • Host: in/on Soil (Canal bank)
  • Origin: Lehi, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 May 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Cephalobus 4g (1 female)

Entry Number: 19905

  • Nematode: Cephalobus persegnis
  • 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: Acrobeloides 2j (5 female)

Entry Number: 19906

  • Nematode: Cephalobus sp.
  • Host: in/on Soil
  • Origin: Murray, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 Jul 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Pratylenchus 4o (1 female)

Entry Number: 19907

  • Nematode: Cephalobus sp.
  • Host: Atriplex confertifolia (Shadscale) in/on Soil
  • Origin: West Utah Lake, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Apr 04
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Stegellata 2b (1 female)

Entry Number: 19908

  • Nematode: Cervidellus ankyrus
  • Host: in/on Soil
  • Origin: Murray, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1923
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Lost (from cysts of H. schachtii)

Entry Number: 19909

  • Nematode: Cervidellus cervus
  • Host: in/on Soil
  • Origin: Richfield, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1933 Sep 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Cervidellus 2 (2 male)

Entry Number: 19910

  • Nematode: Cervidellus cervus
  • Host: in/on Soil
  • Origin: Goshen, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 May 03
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Acrobeles 14b (2 female)