Mesocriconema discus
Thorne & Malek, 1968
0.52 mm; a = 11; b = 4.3; c = 23; V = 95
Annules 94-103, rounded anteriorly but somewhat retrorse near middle
of body and distinctly so posteriorly. Anastomosis rare. Labial disc rounded.
First labial annule forming 4 broad, flat lobes, definitely set off by
a narrow annule. Spear
65u long with strong anteriorly cupped knobs, 12-17 annules encompassed
by its length. Cardia tiny, hemispheroid. Hemizonid and excretory pore
slightly posterior to esophagus. Vagina somewhat sigmoid. Ovaries outstretched
in 2 specimens, reflexed in 1. Offset spermatheca at anterior end of uterine
tract, containing a few spermatozoa. Anus on 5th annule from terminus.
Tail
with rounded contour.
Criconemoides discus is immediately distinguished by the very
characteristic lip
region, rounded to retrorse annules and blunt terminus.
Holotype female and 2 other specimens filed under Criconemoides
3.
Habitat: Bank of slough 2 miles west of Brookings, South Dakota.
DNA Sequences Obtained
| Specimen: |
Collected: |
| LCCI |
Lincoln Country Club |
