Diagnosis of <i>Peltamigratus christiei</i>, a Plant-Parasitic Nematode Associated with Warm-Season Turgrasses in the Southern United States

Fig. 4B. In death the bodies of the Helicotylenchus spp. common on turf usually form a full spiral with the head overlapping the tail at least once.



Image from Plant Health Progress article:
Diagnosis of Peltamigratus christiei, a Plant-Parasitic Nematode Associated with Warm-Season Turgrasses in the Southern United States