KXI'LAVATFOX TO FM,ATK XV. 



FIG. 1. ScMzoli-ivlia didiotonia .Nutting. Forked li.vdroclarliuui (enlarged). 

 L>. Xclii:otrn-Iia divliotiimu. Part of liydrorlailimn (greatly riilar^ed I. 

 :;. .Vr/iicu/i-ic/ia dicliotoiini. Nematoplioroiis lirnnrlilut of hydi-oclailiiini < ^rt-atly rnl.-ir 

 I. .Sc/ii'co/i-ic/id (lirh/itoiiiii. Gonauj;iii]]i (greatly enlarged). 



5. Sc1ii:otriclia2>arri<la Nutting. 1'ortion of sti-ni and liydrorladia (eularp-d i 

 ti. l>ij>lopteron fjiifidricnnii Nulling. 8i(U' view of liydrcicladiiiui (greatly enlarged). 

 7. mplopttron <i<iatlrirrii<: Front vii-\v of liydroflailiinu (greatly enlarged I. 

 200 



