THE NEMATODE FAMILY GMATHOSTOMID^. 



Text'fio-ure 34. 



287 



0-1 mm 



-^ 



IScMnoceplialus miMidentatus. Hooks: a &?), various profile and surface views; 

 c, a strip of cuticle with hooks, from a macerated specimen. 



Text-fieure 35. 



Echinocephalus multidenfafus. Posterior end of female; lateral view. 



preanal. Pairs 3, 7 and 8 are conspiciiously larger than the 

 remainder. There is a long space between 7 and 8. ISTos. 4 and 5 

 are small papillaf, one pair, which we call 4, being in a line with 

 Nos. 2 and 3, while No. 5 is displaced laterally and posteriorly so 

 as to lie at the same transverse level as No. 4. The papillae 

 project into a very feebly developed ala on either side. The 



