106 



Mr. B. F. Cuniniin":s on 



tlie eiulomeial ]>ortion of llie co|mlatory sac is sometimes 

 cliitinized unevenly on eacli side into a more or less separate 

 dorsal and ventral band. In the present case, if we suppose 

 the intervening thin chitin of the sac to have disappeared, we 

 are left with the two separate endodermal appendages on 

 each side. 



Penis. — Within the two iimer rods liesaconii)ound structure, 

 nn oblong hone-siiaped box, consisting of fused penis, hypo- 

 ineres, and endomeres, with two longitudinal rows of curved 

 liooks on the lower surface, occupying the distal half of each 

 lateral margin. The hooks are unequal in size. Near the 



VJiX. 



rRM, 



Paragoniocotes gripocephahis, sp. n. Mouth-parts, X about 260. 



Z.l/. = Left mandible; J?.lf. = Right mandible; ^P. = Basal process; 

 J/. =First maxilla; P. = riiraglo.ssa ; 0<S'. = the so-called 

 oesophageal sclerite ; G. = " Ghiud." 



tip, springing out from each lateral margin, is a directive hair, 

 much longer than the longest hook, very straight, and of a 

 whitish colour. 



Mouth-parts (fig. 7). — Mandibles of a pale whitish colour 

 proximally. A fairly strong ginglymus joint in front and a 

 rather large rounded condyle behind. To each point of arti- 

 culation a strong bar of chitin runs from the apical end* 



On the left mandible there are three apices — two at the tip 

 side by side and a large, broad, flat one projecting below 

 these like a wel.bed toe. There is, in addition, the usual 

 large basal process. On the lower or inner surface of the 

 mandible, at the base of the first apical angle, is a small 



