Diagnosis of <i>Trichodorus obtusus</i> and <i>Paratrichodorus minor</i> on Turfgrasses in the Southeastern United States

Fig. 13. The posterior of a male Trichodorus obtusus. The spicules are large and curved, and no bursa is present. Three supplementary organs are located anterior to the base of the spicules.



Image from Plant Health Progress article:
Diagnosis of Trichodorus obtusus and Paratrichodorus minor on Turfgrasses in the Southeastern United States