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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 21277 - 21288 of 41944

Entry Number: 21280

  • Nematode: Dorylaimus penetrans
  • Host: Citrus sp. (Citrus) in/on Roots
  • Origin: Delmar, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 13
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Amphidelus 5j (1 female)

Entry Number: 21281

  • Nematode: Dorylaimus penetrans
  • Host: in/on Soil
  • Origin: Los Angeles County, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Rhabditella 2a (2 females)

Entry Number: 21282

  • Nematode: Dorylaimus penetrans
  • Host: Prunus sp. (Almond tree) in/on Soil
  • Origin: Escalon, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Apr 03
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Axonchium 13b (1 female)

Entry Number: 21283

  • Nematode: Dorylaimus penetrans
  • Host: in/on Soil
  • Origin: Red Butte, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Feb 02
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 132 (1 male)

Entry Number: 21284

  • Nematode: Dorylaimus fecundus
  • Host: in/on Soil (Stream bed)
  • Origin: Broad Run (Bridge), Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Sep 23
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 73 (4 females & 1 male)

Entry Number: 21285

  • Nematode: Dorylaimus fecundus
  • Host: in/on Soil
  • Origin: Broad Run (Bridge), Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Oct 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 73b (4 females & 1 male)

Entry Number: 21286

  • Nematode: Dorylaimus proximus
  • Host: in/on Soil (Stream bed)
  • Origin: Broad Run (Bridge), Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Sep 23
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 73 (4 females & 1 male)

Entry Number: 21287

  • Nematode: Dorylaimus proximus
  • Host: in/on Soil (Mud & Algae)
  • Origin: Washington, D. C. (Potomac River, Tidal Basin), District of Columbia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 May 29
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 107 (2 females & 1 male)

Entry Number: 21288

  • Nematode: Dorylaimus carinatus
  • Host: in/on Soil (Stream bed)
  • Origin: Broad Run, Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Sep 23
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 73 (4 females & 1 male)

Entry Number: 21289

  • Nematode: Dorylaimus carinatus
  • Host: in/on Soil
  • Origin: Broad Run (Under bridge), Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Oct 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 75 (1 male)

Entry Number: 21290

  • Nematode: Dorylaimus carinatus
  • Host: Saccharum sp. (Sugar cane mine) in/on Soil
  • Origin: Houma, Louisiana, USA
  • Collector: Gerald Thorne
  • Date Collected: 1931 Nov 02
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 75c (1 female)

Entry Number: 21291

  • Nematode: Dorylaimus tenellus
  • Host: in/on Soil
  • Origin: Wrangell, Alaska, USA
  • Collector: Gerald Thorne
  • Date Collected: 1932 Aug 16
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 76 (4 females)