Filenchus hamatus
Tylenchus hamatus
(Thorne & Malek,1968) Raski & Gereart, 1986
L = 0.66 mm; a = 30; b = 7.3; c = 8.2; V =
70;
Bodyarcuate when
relaxed, especially in caudal portion. Cuticle with striae about
1u apart. Lateral field marked by 4 fine lines occupying
about 1/5 body width. Lip
regionsomewhat truncate, not striated. Spear8u-9u
long with small, sloping knobs, its muscles attached to arches of cephalic
framework. Intestine packed with coarse refractive granules,
obscuring details of gonads. Vulva-anus distance 2.5 times tail length.
Terminus
bluntly rounded,
sometimes
hooked. Males not collected.
Tylenchus hamatus is distinctive because of the short spear with
sloping knobs and arcuate body ending in a bluntly rounded, hooked
terminus.
Habitat: Cultivated field, Southeast South Dakota Experiment
Farm, Centerville, South Dakota.
DNA Sequences Obtained