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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 30217 - 30228 of 41944

Entry Number: 30221

  • Nematode: Ditylenchus valveus
  • Origin: Avon, South Dakota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1958 May 16
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Ditylenchus 3c (2 male)

Entry Number: 30222

  • Nematode: Ditylenchus valveus
  • Host: (Soil) in/on Soil
  • Origin: Avon, South Dakota, USA
  • Collector: Gerald Thorne via F. E. Caveness
  • Date Collected: 1958 May 16
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Deladenus 1 (3 female, Type Slide)

Entry Number: 30223

  • Nematode: Eudorylaimus
  • Host: (Native prairie) in/on Soil
  • Origin: Southeast of Boulder, Colorado, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Mar 28
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-1294

Entry Number: 30224

  • Nematode: Axonchium solitare?
  • Host: (Prairie sod) in/on Soil (Prairie sod)
  • Origin: Tagus, North Dakota, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 07
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-1303

Entry Number: 30225

  • Nematode: Nygolaimus
  • Host: Zea mays (Corn field)
  • Origin: Fairmont, Nebraska, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Mar 29
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-1310

Entry Number: 30226

  • Nematode: New Genus
  • Host: (Slough bank)
  • Origin: Brookings, South Dakota, USA
  • Collector: Gerald Thorne & R. B. Malek
  • Date Collected: 1965 Jul 30
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Nema sp. (1 female larva)

Entry Number: 30227

  • Nematode: Eudorylaimus acuticauda
  • Host: Medicago sativa (Alfalfa)
  • Origin: Huron, South Dakota, USA
  • Collector: Gerald Thorne via F. E. Caveness
  • Date Collected: 1963 Oct 03
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Eudorylaimus 6a (2 female, 2 male, Type Slide)

Entry Number: 30228

  • Nematode: Eudorylaimus
  • Origin: Ames, Iowa, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Sep 10
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Dorylaimus 1m (1 female)

Entry Number: 30229

  • Nematode: Eudorylaimus
  • Origin: Ames, Iowa, USA
  • Collector: Gerald Thorne
  • Date Collected: 1966 Sep 10
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: Enchodelus 2L (1 female)

Entry Number: 30230

  • Nematode: Eudorylaimus
  • Origin: Glendive, Montana, USA
  • Collector: Gerald Thorne
  • Date Collected: 1967 Jun 07
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-643

Entry Number: 30231

  • Nematode: Drepanodorus
  • Host: Fragaria x ananassa (Strawberry) in/on Soil
  • Origin: Mitchell, South Dakota, USA
  • Collector: Gerald Thorne via L. W. Carlson
  • Date Collected: 1964 Jul 22
  • Date Received: 1989 May 02
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
  • Slides: TSD-720

Entry Number: 30232

  • Nematode: Rheotanytarsus sp.
  • Host: Strelkovimermis papillosus in/on Nematode
  • Origin: Mississippi River, Clearwater County, Minnesota, USA
  • Collector: via A. A. Johnson
  • Date Collected: 2002 Aug 18
  • Date Received: 2003 May 05
  • Disposition of Sample: Specimens to USDANC (General)
  • Slides: G-13561 & G-13562
  • Vials: G-5721f