PLATE II. 



SNAIL LEECHES. 

 Glossrphonidae. 



1, Digestive apparatus of a Glossiphon. 

 3, Tubular proboscis, mag. 20 diameters. 



3, Portion of ditto, highly magnified. 



4, Cup -shaped plate of G. bioculata. 



5-6, Ovary. 



7, Nervous system, a, Cephalic ganglia. 



b, Portion from body. 



8, Parasites on cervical plate of G. bioculata. 



