234 



INDEX. 



Trematoda, 47, 52 

 Trichinella, 59, 60 

 Trichomonas, 3 

 Trichonympha, 3 

 Tricladida, 47 

 Trochelminthes, 62 

 Trypanosomes, 3 

 Tubifex, 87 

 Tubipora, 25 

 Tubularia, 24, 33 

 Tunicate, 197 

 TurbeUaria, 47, 48 



Unio, 112, 114 



Urochorda (Enteropenusta), 194, 196 



Uroglena, 2 



Venus, 112, 114 

 Vertebrata, 195 

 Vespa, 156 

 Volvox, 2, 9 

 Vorticella, 5, 15 



Washing, 209 

 Water-flea, 174 



YoLDiA, 112, 114, 123 



ZOANTHARIA, 25 



Zoomastigoda, 2 

 I Zoothamnium, 5 



