xo. 9 cuckler: nematode parasites 159 



EXPLANATION OF PLATES 



All figures were drawn with the aid of a microprojector or camera lucida. 

 The value of the projected scale is indicated in millimeters beside each figure. 

 The following abbreviations are used: 



a ala 



ep excretory pore 



gc accessory piece 



Ic cloacal lip 



nr nerve ring 



oe ovejector 



ov ovarj- 



p and number genital papilla 



sp spicule 



J^' seminal vesicle 



Is testis 



V vagina 



'vl vulva 



