Genus Trophotylenchulus
(Raski, 1957)
Syn.: Trophonema Raski, 1957
Definition: Sphaeronematinae. Females elongate-saccate, in
the form of a spiral. Lip region not offset, without annules.
Body tapering at either end. Spear well developed with rounded basal
knobs. Orifice of dorsal oesophageal gland about 1/2 spear length
from spear base. Procorpus cylindrical, widening slightly to large,
ovate, median bulb which has large, central valve plates. Isthmus
narrow, of medium length, expanding to spathulate terminal bulb.
Excretory pore just behind median bulb. Vulva posterior; ovary single,
prodelphic, extending to median bulb and reflexed once or twice.
Spermatheca present. Body narrows behind vulva and again at anus;
tail short, curved, tapering to a point. Male without spear; oesophagus
degenerate; spicules long and slightly curved, with sheath. Gubernaculum
short and simple. Bursa absent. Tail tapering gradually to sharp
point.
Type species: Trophonema arenarium (Raski, 1956) Raski,
1957
Syn.: Sphaeronema arenarium Raski, 1956
(Description- Goodey, 1963)
DNA Seqences Obtained
