Takamangai circulifera
(Loof, 1961) Andrássy, 1991
Syn.:
 Eudorylaimus circulifer  Loof 1961
Thonus circulifer (Loof, 1961) Thorne, 1974
Dorylaimus intermedius apud (Thorne & Swanger, 1936)
Photo Gallery- Konza Prairie
Photo Gallery- Forensic Nematology
Lip region almost continuous with the neck contour; spear about as long as and one-seventh as wide as lip region width; esophagus enlarged near the middle; cardia conoid, one-fourth the body width;  female rectum one and one-half times as long as anal body diameter; prerectum one to two times as long as the rectum; ovaries reflexed two-thirds the distance to the vulva; eggs one-half the body width and three times as long as wide;  spicula huge, arcuate; supplements 10-14, beginning a spiculum length in front of the anus, anteriorly separated by spaces about as wide as themselves but posteriorly brought more closely together by the curvature of the tail, finally appearing contiguous; cuticle of female tail usually with obscure internal circular marking.
    The above descriptions from specimens collected in Utah, U.S.A.  Males known from only two of the many collections made in the United States.

Habitat:  A cosmopolitan species.
(Description- Thorne & Swanger, 1936)

1.5 mm; a = 33; b = 4.2; c = 58; V = 49
Body cylindroid, slightly arcuate.  Lateral fields 1/6 body width.  Lip region set off by slight expansion with easily visible papillae.  Spear 14u long with aperture occupying 2/5 its length.  Guiding ring a muscular collar.  Esophagus enlarged in posterior 2/5 by very gradual expansion until 1/2 body width.  Cardia a narrow disc with conoid posterior portion extending into intestine.  Intestinal cells filled with bright brown granules.  Prerectum length equal to body width, rectum about same length.  Vulva transverse with large sclerotized labia.  Ovaries reflexed 1/3 distance back to vulva.  Tail bluntly rounded with numerous saccate bodies in cuticle, variable in numbers and arrangement.  Males not found and gravid females contained no sperms.
     Thonus circulifer is distinctive because of 2/5 expanded esophagus, form of vulva and saccate glands in blunt rounded tail.

Habitat:  A rather common inhabitant of both cultivated and virgin soil throughout the Northern Great Plains.
(Description- Thorne, 1974)

DNA Sequences Obtained
Specimen: Collected:
KonzaI BD-68 Konza Prarie, First Survey
Konza IIBD-92 Konza Prarie, First Survey
Konza IIIAD-23 Konza Prarie, First Survey
Konza IDD-150 Konza Prarie, First Survey
Konza ICD-144 Konza Prarie, First Survey
Konza IICC-137 Konza Prarie, First Survey