Photo Gallery- Forensic Nematology Photo Gallery- South Dakota bearberry |
Description (from Thorne, 1974)
Body
cylindroid, arcuate, especially posteriorly. Lip region 1/3 neck
base. Lateral field 1/3 body width, granular without visible cellular
structure. Lip region slightly set off with low, rounded, but distinct
papillae. Spear
15 um long with aperture occupying about 2/5 its length. Guiding
ring a closely fitted muscular collar. Esophagus enlarged slightly
anterior to middle by very gradual expansion. Cardia
discoid,
then elongate conoid. Intestinal cells somewhat tesellated with fine
dark brown granules. Prerectum 2-3 times as long as body width.
Rectum about equal to tail length. Vulva
transverse with labia forming a cephalated vagina with prominent cells.
Tail
dorsally convex conoid to blunt rounded terminus. One pair of caudal
pores and numerous saccate glands. Males unknown and females did
not contain sperms.
Thonus saccatus is distinguished by the slightly
elevated labial papillae, posteriorly arcuate body, form of vulva-vagina,
and dorsally convex conoid tail with numerous saccate bodies.
Habitat: Hillside thicket 6 miles west of
Wilmot, South Dakota.
DNA Sequences Obtained
Specimen: | Collected: |
SD JS3-03 | South Dakota Bearberry |