Thorne and Swanger, 1936
|
Photo Galleries- George Washington Memorial Parkway |
Description (from Thorne, 1974)
Except for the single ovary, Pungentus monohystera
is almost identical to P. pungens. Perioral
plates conspicuous. Spear
and
its extensions each about 20 um long. Esophagus
expanded near middle by gradual enlargement. Cardia
elongate
hemispheroid with only slight traces of a disc. Anterior ovary reduced
to rudimentary branch. Posterior
ovary reflexed about halfway to vulva.
Eggs twice as long as body diameter. Prerectum
length
5 times body width. Rectum length slightly longer than anal body
diameter. Saccate glands
present in tail but not as numerous as in P. pungens.
Pungentus monohystera is readily distinguished
from other species with a single ovary by its much larger size.
Habitat: A very common species from numerous
localities in South Dakota; Tagus and Williston, North Dakota; Baker, Montana;
Hadashville, Manitoba, Canada; and Ames Iowa.
DNA Sequences Obtained
| Specimen: | Collected: |
| KonzaIII AC-74 | Konza Prairie, First survey |
 |
 |
