THE NEMATODE FAMILY GXATHOSTOMID^. 



279 



Text-fi^'iire 25. 



-s.m.p. 







Echinoceplialiis spinosissimus. Tlie head; dorsal (or ventral) view. 



Text-figure 26. 



"" Jil^ 









JScJihiocepJialus spinosissimus. The head; lateral view. 



