SYSTEMATIC AND DESCRIPTIVE. 



195 



Genus I. Streptococcus. 



SPECIES. 

 ASSOCIATED WITH DISEASE (many Pathogenic or causally related to disease) :- 



/ Streptococcus pyogenes 

 Streptococcus pyogenes malignus 

 Streptococcus pyogenes aureus 



Streptococcus pyogenes albus 

 Streptococcus pyogenes citreus . 

 Streptococcus cereus albus . 



Streptococcus cereus flavus . 

 In man . \ Streptococcus erysipelatosus 



Streptococcus toxicatus 

 Streptococcus in puerperal fever . 

 Streptococcus in endocarditis 

 Streptococcus in diphtheria . , 

 Streptococcus articulorum . 



Streptococcus in cerebro-spinal 

 meningitis .... 

 Streptococcus in yellow fever 

 Streptococcus in dental caries 

 Streptococcus variolce et vaccinise 



Streptococcus of swine-erysipelas 

 Streptococcus of cattle-plague 

 Streptococcus of foot and mouth 



disease . 



In ani 1 ( Streptococcus of septicaemia con- 

 secutive to anthrax . 

 Streptococcus septicus . 

 Streptococcus of progressive tissue 



necrosis in mice 



Streptococcus perniciosus . , 

 Streptococcus bombycis 

 \ Streptococcus insectorum 



UNASSOCIATED WITH DISEASE : 



Streptococcus viscosus . . , 

 Streptococcus coronatus 

 Streptococcus radiatus 

 Streptococcus flavus desidens 



Pathogenic in man and ani- 

 mals. 



Saprophytic in man, patho- 

 genic in animals. 



Pathogenic in man and ani- 

 mals. 



Associated with pus, but not 

 pathogenic in man or ani- 

 mals. 



" 



Pathogenic in man and ani- 

 mals. 



Pathogenic (?). 

 Possibly saprophytic only. 



Saprophytic in man, patho- 

 genic in animals. 



Possibly saprophytic only. 



Pathogenic in man (?) and 



animals (?). 

 Pathogenic (?). 

 Pathogenic. 



Pathogenic (?), 



Pathogenic. 



Possibly saprophytic only. 



Zymogenic saprophyte. 

 Simple saprophyte. 



Streptococcus pyogenes, Rosenbach (Chain 

 micrococci in pus: Coccus of Pycemia). Cocci 

 occurring singly, in chains, and in zooglcea. Inocu- 



