Lateral field marked by a single deep incisure extending from base of lip region to near terminus. Lip region set off by constriction, with deep lateral grooves aligned with those in the lateral field. In these grooves, near the margin of the head, the amphid apertures are located. Dorsal and ventral indentations less conspicuous than lateral. From a face view the lip region is of the typical quadrangular form, with four rounded sublateral lips, on each of which is a single conspicuous papilla. Labial disc low, rounded. Spear 107 to 115 u long, with well-developed, rounded knobs. Median esophageal bulb more than half as wide as neck. Isthmus shorter than neck width, with nerve ring adjacent to bulb. Esophageal glands lobelike, extending over anterior end of intestine. Excretory pore about one neck width behind median bulb. Hemizonid slightly anterior to excretory pore. Vula transverse slit. Ovaries outstretched, each uterus containing a spematheca. Intestine extending into tail, with rectum attached to ventral side. Tail four to five times as long as anal body diameter. Male with caudal bursa extending from slightly anterior to spicula to terminis. Phasmids about one-third distance from cloaca to terminus, located at base of bursa.
Belonolaimus longicaudatus is distunguished from B. gracilis by the slenderer body, shorter spear, and longer tail.
Rau records finding Belononlaimus longicaudatus about the roots of thiry plant species.
CORN NEMATODES- Major Pests on Corn
(Description- Thorne, 1961)