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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 23773 - 23784 of 41939

Entry Number: 23779

  • Nematode: Psilenchus hilarulus
  • Origin: Bard, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1939 Mar 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 1e (1 female & 3 males)

Entry Number: 23780

  • Nematode: Psilenchus hilarulus
  • Host: Hordeum vulgare (Barley field) 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 h (1 female)

Entry Number: 23781

  • Nematode: Psilenchus hilarulus
  • Host: Beta vulgaris (Beet) in/on Soil
  • Origin: Ft. Collins, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Sep 18
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 1f (2 females & 1 male) & Tylenchus 6 (1 female)

Entry Number: 23782

  • Nematode: Psilenchus hilarulus
  • Host: Solanum tuberosum (Potato) in/on Soil
  • Origin: Aberdeen, Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1944 Mar 09
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 1g (3 females & 2 males)

Entry Number: 23783

  • Nematode: Psilenchus hilarulus
  • Origin: California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1947
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 1h (3 females)

Entry Number: 23784

  • Nematode: Psilenchus hilarulus
  • Origin: Mt. Clemons, Michigan, USA
  • Collector: Gerald Thorne
  • Date Collected: 1949 Sep 16
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 1 (1 female)

Entry Number: 23785

  • Nematode: Psilenchus sp.
  • Origin: Santa Clara, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Nov 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 2 (1 female)

Entry Number: 23786

  • Nematode: Psilenchus magnidens
  • Origin: Holladay, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1934 May 14
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 3 (3 females)

Entry Number: 23787

  • Nematode: Psilenchus magnidens
  • Origin: Reno, Nevada, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Oct 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Seinure 4e (1 female)

Entry Number: 23788

  • Nematode: Psilenchus gracilis
  • Origin: West Jordan, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 May 28
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Tylenchus 6r (1 female & male)

Entry Number: 23789

  • Nematode: Psilenchus gracilis
  • 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: Tylenchorhynchus 2j (1 male)

Entry Number: 23790

  • Nematode: Psilenchus aberrans
  • Origin: Fort Collins, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 Aug 01
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 5 (10 females & 1 male) & Tylenchus 6p (2 females & 1 male)