V. nOLOTHUIiOIDEA. 



347 



Fig ■XWi ^ \na,tora\ ni CaurHuti (trenata. (Atti-r Kinfrsley.) n, anastomoses of dorsal 

 blood-vessel- /"-, branohial tree; d, dorsal blood-vessel; /. mesenterial ftlaraents; 

 o lienital opening: ', alimentarv canal; ', lontcitudmal muscles: m, mouth: ", 

 Kenital duet: ;>, pharvnaeal rinK ; i-, gonads, cut away on right side: ^ amiiuUas 



