THE CLASSIFICATION OF BACTERIA 75 



* Species more or less pathogenic. 



6. M. pyogenes var. albus Rosenbach. 



7. M. mastitis. 



8. M. polymyositis Martinotti. 

 ** Saprophytic species. 



f Gelatin colonies compact ; border entire undulate. 



9. M. aethebius (Trev.) Fliigge. 



(f Gelatin colonies with lacerate-fimbriate borders. 



10. M. coronatus Fliigge. 



ftf Gelatin colonies not described. 



11. M. liquefaciens. 



b. Liquefaction of the gelatin takes place near the surface; i.e. 

 crateriform becoming stratiform. 



* Milk coagulated. 



12. M. simplex Wright. 



13. M. acidi-lactis Kriiger. 

 ** Milk not coagulated. 



14. M. xanthogenicus (Freire) Sternberg. 



2. - Growth on potato yellowish yellowish brown. 



15. M. Freudenreichii Guillebeau. 



16. M. radiatus Fliigge. 



3. No growth on potato. 



1 7. M. dissimilis Dyar. 



II. Liquefaction of the gelatin proceeds very slowly. 



A. Liquefaction takes place only on the surface, crateriform. 



1. Gelatin colonies very minute. 



18. M. ascoformans Johne. 



2. Growth on gelatin normal. 



19. M. albicans (Trev.) Bumm. 



20. M. aerogenes Miller. 



21. M.fatidus K lam men. 



B. Liquefaction takes place in depth, infundibuliform. 



22. M. alvi. 



23. M. Rheni. 



6. M. pyogenes var. albus Rosenbach 



Wundinfectionskrankh. des Menschen, Wiesbaden, 1884. 

 Morphology. Cocci io.8/1; occur singly and in clumps. 

 Gelatin colonies. Deep colonies: round-oval, yellow to brown, entire, finely 

 granular. Surf ace colonies : round, irregular, white, becoming 1.5 mm., and 



