Skip to main content

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 19213 - 19224 of 41945 records

Entry Number: 19214

  • Nematode: Strelkovimermis arkansensis
  • Host: Glyptotendipes paripes (Midge (Chironomid)) in/on Insect (hemocoel of adult)
  • Origin: Lake Conway, Faulkner Co., Arkansas, USA
  • Collector: via A. A. Johnson
  • Date Collected: 1996 Apr 28
  • Date Received: 1999 Apr 13
  • Disposition of Sample: Specimens to USDANC (Type)
  • Vials: T-450p, T-451p, T-452p, T-453p, T-454p (paratypes)*

Entry Number: 19215

  • Nematode: Hydromermis contorta
  • Host: Glyptotendipes paripes (Fly) in/on Insect (homocoel of female imagos)
  • Origin: Lake Itasca, Clearwater Co. (47 14'N, 95 10'W), Minnesota, USA
  • Collector: via A. A. Johnson
  • Date Collected: 1997 Jun
  • Date Received: 1999 Apr 13
  • Disposition of Sample: Specimens to USDANC (Type)
  • Vials: G-5128f (5ADM, 4ADF) & G-5129f (preparasitic larvae) (voucher specimens)

Entry Number: 19216

  • Nematode: Hydromermis pseudocontorta
  • Host: Chironomus sp. (s. str.) (Midge) in/on Insect (homocoel of 4th instar larvae)
  • Origin: Long Lake,Clearwater Co. (47 17'N, 95 18'W), Minnesota, USA
  • Collector: via A. A. Johnson
  • Date Collected: 1997 Jun
  • Date Received: 1999 Apr 13
  • Disposition of Sample: Specimens to USDANC (Type)
  • Vials: T-455p (3ADM, 2ADF), paratypes)

Entry Number: 19217

  • Nematode: Strelkovimermis amphidis
  • Host: (Insect) in/on Insect
  • Origin: Lake Itasca, Minnesota, USA
  • Collector: via A. A. Johnson
  • Date Received: 1999 Apr 13
  • Disposition of Sample: Specimens to USDANC (Type)
  • Vials: T-456p (2ADM, 5ADF, paratypes)

Entry Number: 19218

  • Nematode: No Nematodes*
  • Host: Ulmus davidiana (Mollusca from elm tree) in/on Mollusca from elm tree
  • Origin: Destination: California, Korea
  • Collector: via Dickson Terashsita (Inspector, APHIS)
  • Date Collected: 1999 Apr 15
  • Date Received: 1999 Apr 16
  • Disposition of Sample: Records only; material discarded

Entry Number: 19219

  • Nematode: Xiphinema americanum
  • Host: Solanum tuberosum (Potato) in/on Soil
  • Origin: Grafton (GN Survey), North Dakota, USA
  • Collector: P. Hagan & H. L. Smith via Gaddis
  • Date Received: 1944 Aug 29
  • Disposition of Sample: Specimens to USDANC (General)
  • Slides: G-11839

Entry Number: 19220

  • Nematode: Strelkovimermis spiculatus
  • Host: Aedes albifasciatus (Mosquito) in/on Insect larvae
  • Origin: Miguelin River, Punta Lara, Partido de Ensenada, Buenos Aires Province, Argentina
  • Collector: Nora B. Camino, sent via Arthur Johnson and Tok Fukuda
  • Date Received: 1999 Apr 13
  • Disposition of Sample: Specimens to USDANC (General)
  • Vials: G-5130f

Entry Number: 19221

  • Nematode: Actinolaimus microdentatus
  • Host: Smilax sp. (Cat Brier) in/on Soil
  • Origin: Takoma Park, Maryland, USA
  • Collector: B. Y. Morrison via Gerald Thorne
  • Date Collected: 1926 Nov 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Actinolaimus 1 (1 young)

Entry Number: 19222

  • Nematode: Actinolaimus macrolaimus
  • Host: in/on Soil (Wet)
  • Origin: Lake Martha (Brighton, wet soil near spring at base of Mt. Wolverine, bank sod), Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1926 Aug 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Actinolaimus 2 (1 young)

Entry Number: 19223

  • Nematode: Actinolaimus sp.
  • Host: (Wet sod) in/on Soil
  • Origin: Arlington Farm (Pond, wet sod), Virginia, USA
  • Collector: Gerald Thorne
  • Date Collected: 1930 Oct
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimus 39 (1 female)

Entry Number: 19224

  • Nematode: Actinolaimus sp.
  • Host: in/on Soil
  • Origin: Slide Gulch (Near Arrowrock Reservation, soil where Gordius collections were made), Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 May 13 & 14
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Actinolaimus 3 (4 female)

Entry Number: 19225

  • Nematode: Actinolaimus sp.
  • Host: (Stream bank) in/on Soil
  • Origin: Broad Run, 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 (1 female)