CLASSIFICATION OF THE BACTERIA. 69 



3. Filaments cylindrical, 

 articulated, with co- 

 nidia : 



Filaments colorless Crenothrix, Cohn. 

 Filaments with phy- 



cochrome . . . Cham.esiphoN'. 



4. Filaments spiral 

 without phycochrome : 



Filaments, short, 

 light, sinuous • Vibrio, Ehr. 



Filaments, short, spi- 

 ral, rigid . . . Spirillum, Ehr. 



Filaments, long, spi- 

 ral, flexible . . Spirochete, Ehr. 

 with phycochrome : 



Filaments long, spi- 

 ral, flexible . . Spirulina, Link. 



5. Filaments in chaplet : 

 Filaments, without 



phycochrome . . Streptococcus, Billr. 

 Filaments with phy- ) Anabena, Bory. 

 cochrome . . . f Spermosika, Kg. 



6. Filament flagelliform, 



slender Mastigothrix, etc. 



Filaments united into glai- 

 ry families by an intercel- 

 lular substance : 



1. Filaments cylindrical, 



colorless Myconostoc, Cohn. 



2. Filaments cylindri- ) „ 



, ... , J I Chthonoblastus. 



cal, with phyco- > T Tr 



, \ Limnoclide, Kg. 



chrome . . . . ; ° 



3. Filaments in chaplet . Nostoc, etc. 



4. Filaments flagelliform, 



slender Rxvularia, etc. 



