FAMILY X. LACTOBACILLACEAE 553 



b. Milk coagulated then digested. 



8. Euhacterimn quinlum. 

 bl). Milk not attacked. 



9. Euhaderivm limosum. 

 aa. Gelatin not liquefied. 



b. Milk is coagulated. 



c. Ethanol produced as a principal end-product of fermentation. 



10. Eubacferium ethylicum. 

 cc. Ethanol not produced. 



d. Nitrites produced from nitrates. 



11. Euhacterium ureolyiicum. 

 dd. Nitrites not produced from nitrates. 



12. Euhacterium biforme. 

 bb. Milk not coagulated. 



c. Nitrites produced from nitrates. 



13. Euhacterium nitritogenes. 

 cc. Nitrites not produced from nitrates. 



14. Euhacterium aerofaciens. 

 II. Gas not produced in culture media. 



A. Carbohydrates are attacked. 



1. Neutral red reduced. 



a. Phenosafranin reduced. 



15. Euhacterium parvum. 

 aa. Phenosafranin not reduced. 



16. Euhacterium crispatum. 



2. Neutral red not reduced. 



17. Euhacterium discifortnans. 



B. Carbohydrates not attacked. 



1. Pathogenic. Action on milk not recorded. 



18. Exibacterium mimitum. 



2. Not pathogenic. Milk not coagulated. 



19. Euhacterium lentum. 



C. Effect on carbohydrates not recorded. No growth in milk. Pathogenic. 



20. Euhacteririm poeciloides . 



1. Eubacteriuni foedans (Klein, 1908) semifluid mass. Alkaline reaction. Gas and 



Prevot, 1938. (Bacillus foedans Klein, Lan- fetid odor produced. 



cet, 1, 1908, 1832; Prevot, Ann. Inst. Past., Milk: No change. Fetid odor produced. 



60, 1938, 294.) Coagulated proteins not attacked. 



foe'dans. L. part. adj. foedans making Hj'drogen sulfide is produced, 



foul or filthj'. Acid from glucose, fructose, maltose and 



Straight or curved rods, 0.4 by 3.0 to 5.0 galactose, 



microns, occurring in short chains or some- Ammonia, acetylmethylcarbinol, volatile 



times in filaments. Non-motile. Gram-posi- amines, alcohol, ketone and formic, pro- 



tive. pionic and lactic acids are produced. 



Gas and fetid odor produced in culture Nitrites produced from nitrates, 



media. Neutral red not reduced. 



Glucose gelatin: Colonies cloudy. No Phenosafranine reduced, 



liquefaction. Anaerol)ic. 



Deep agar colonies: Lenticular, becoming Optimum temperature, between 20° and 



floccose and arborescent. 37° C. 



Glucose broth: Growth occurs as a viscid. Not pathogenic. 



