Description (from Thorne, 1974)
Body distinctly arcuate when relaxed. Lateral field 1/4 body width. Lip region rounded with slightly elevated papillae. Spear 15 um long, the aperture occupying 1/3 its length. Esophagus enlarged near middle by gradual expansion. Cardia elnongate-conoid, varying in length from 1/2 to more than 1 body width. Intestinal granules excessively fine, dark brown. Microvilli not observed. Ovaries reflexed 3/4 way to transverse vulva. Eggs twice as long as body width. No spermatheca or sperms present in gravid females indicating that males do not occur. Rectum length 1 1/2 times anal body diameter. Prerectum length twice body width. Tail slightly bent dorsally.
Mesodorylaimus recurvus is distinctive because of transverse vulva, arcuate body, gradual expansion of esophagus and spicate, dorsally bent tail.
Habitat: Three females from prairie sod near Tagus, North Dakota.
Of special interest are the two additional gland nuclei located near the dorsal one, making a total of seven. A similar number is reported for Laimydorus incae. There are disturbing similarities between this species and Laimydorus reversus.
DNA Sequences Obtained
|KonzaI AD-37||Konza Prairie, First Survey|