FLANT NEMAIUULS H111 LU UWV.K bt1UULU NUW l U
A B C


.stomato-stylet.,


odon to-siglet....


Tylenchidae Aphelenchidae Dorylaimidae

 tomato -stylet odonto -stylet

 stylet a( transformed stylet a
 buccul charity transformed tooth
 Figure 11.-Schematic drawings to explain the main differentiating characters
of the three groups of nematodes to which most plant-parasitic forms belong. A.
Tylenchidae, B. Aphelenchidae, C. Dorylaimidae. dsl oes gl, dorsal oesophageal
gland; int, intestine; mdl bib, middle oesophageal bulb; nrv r, nerve ring; out dsl
oes gl, outlet of dorsal oesophageal gland; out rt subv oes gl, outlet of right subven-
tral oesophageal gland; rt subv oes gl, right subventral oesophageal gland.