Photo Gallery- Forensic Nematology
Photo Gallery- Nine-mile Prairie
Description (from Thorne, 1974)
Body slightly arcuate, slender cylindroid. Cuticle greatly thickened near anterior end. Lips set off by deep constriction, angular. Spear 22 um long, its aperture about 3/7 of length. Lateral fields 1/8 body width, with prominent cells in tandem, each with a distinct pore. Esophagus enlarged in posterior 3/5 by a very gradual expansion. Cardia discoid, then conoid. Intestinal cells with scattered, dark refractive granules. Vulva transverse, the labia appearing more muscular than refractive. Ovaries reflexed about halfway to vulva. Egg length about twice body diameter. Prerectum length about 3 times body width. Rectum slightly longer than anal body diameter. Tail with hyaline area occupying about 1/2 width of its core.
Aporcelaimellus placus is immediately distinguished by the thick cuticle near the head, narrow lateral field and hyaline area occupying ventral portion of tail.
Habitat: About root of American elm in windbreak 2 miles east of White, South Dakota, collected by R. B. Malek.
DNA Sequences obtained
|9Mile 3/30 LP1-39||9-Mile Prairie, first survey|