Jaws around mouth (ventral) 

 Eyes 



Muscular pharynx 



■Anterior sucker 

 Cerebral ganglia ("brain") 



1st diverticulum of crop 



Prostate 



Penis 



Mole opening 



Ovary 



Vagina 

 Female opening 



Vas deferens 



Ventral nerve cord 

 Testis 



Nephridtum 



Anus 



Clitellum 



Crop 



Nerve cord ganglion 



lOth diverticulum 



of CTOp 



Posterior sucker 



Figure 106. Dorsal view to show the segmentation and internal anatomy of the leech. Part 

 of the crop is cut away on the left side to show the ventral nerve cord and reproductive organs. 

 The numbers on the right indicate the internal segmentation or somites as shown by the 

 nerve ganglia. 



192 



