b HILDA HEMPL HELLER 



Genus 7. Vallorillus. nov. gen. Type 

 species fallax (Bacillus fallax Weinberg 

 and S^guin) as described by the Com- 

 mittee (p. 27). 

 EE. Sporulate readily, attack .several sugars; not 

 known to be pathogenic. 

 Genus 8. MuUifermentans nov. gen. Type 

 species lenalhus {Bacillus multifermenlans 

 tenalbus Stoddard) as described by Stod- 

 dard (1919 b). 

 DD. Do not clot milk. Large Gram-positive rods with 

 long elipsoid spores. 



Genus 9. Hiblerillus nov. gen. Type spe- 

 cies sexlus (bacillus VI of von Hibler) 

 as described by von Hibler (1908). (Re- 

 sum6 by Weinberg and S^guin (p. 202).) 

 BB. Liquefy gelatin. 



C. Produce stormy fermentation of milk and sporulate on alkaline 

 media only. 



Genus 10. Welchillus nov. gen. Type 

 species aerogenes (Bacillus aerogenes 

 caps^ilatus Welch and Nuttall), type 1 

 as defined by Simonds (1915 a and b). 

 CO. Do not produce stormy fermentation of milk. 

 D. Do not sporulate. 



Genus 11. Stoddardillus nov. gen. Type 

 species egens (Bacillus egens Stoddard) 

 as described by Stoddard (1919 a). 

 DD. Sporulate readily. 



E. Gram-positive, form woolly colonies in deep agar. 

 Typically highly pathogenic tissue invaders 

 of many species of animals. 



Genus 12. Rivoltillus nov. gen. Type 

 species vibrion (the vibrion septique of 

 Pasteur) as defined in a future paper. 

 EE. Gram-negative, may contain Gram-positive gran- 

 ules. Form smooth lenticular or modified 

 lenticular colonies in deep agar. Typically 

 pathogenic for cattle, sheep, and guinea- 

 pigs. 



Genus 13. ArloingiUus nov. gen. Type 

 species Chauvoei (Bacterium Chauvoei 

 Arloing, Cornevm and Thomas) as de- 

 scribed in a future paper. 

 AA. Produce HjS demonstrable by a lead-acetate-paper test when grown in 

 blood broth. 

 B. Produce a large amount of gas from carbohydrates. Heavy Gram- 

 ])08itive rods with little or no tendency to sporulation. 



