Plate I. 



*& %.n 



Pnobosas 



-Muscle, 

 bundle 



Central Cangli 

 lateral excretory canal 



F/@ & *~*-~ ^-^-""^ &cretory j 

 I "• :^>-i ^capillaries /a 



'ionic 



Proboscis- 



Flg.S 



Longitudinal 

 ;u^;'.V,;;T77I7:,';v,\w l ;in:;',V''M., >^---muscies 



" ^--Laierul 

 \ nerve cord 



x Lxcretory 

 canals 



COENOMORPHUS LINGUATULA (van Beneden), 



