238 BACTERIOLOGY 



87. B. Kralii Dyar 



l.c., 376. 



Morphology. Bacilli short, with rounded ends, 0.7 : 0.8 /u, ; occur singly. 

 Gelatin. Liquefied after 30 days. Nitrates reduced to nitrites. 

 Pepton rosolic acid solution. Unchanged. 

 Lactose litmus. Red, becoming blue. 

 Agar slant. Growth white, opaque. 

 Habitat. A culture from Krai's laboratory. 



88. B. lactis 



B. b Guillebeau: Ann. Micrographie, XI, 225. 



Morphology. Bacilli i.o: 1.2 /x. Growth like B. aerogenes. 

 Milk. Quickly coagulated. 

 Habitat. Isolated from milk. 



89. B. tartaricus Grimbert-Fiquet 



Jour. Pharm. et de Chim., July 6, 1897. 



Morphology. Bacilli 1.0-2.0 /x. Stain by Gram's method, facultative anae- 

 robic. 



Gelatin colonies. Resemble B. colt; liquefaction of the gelatin slow, begin- 

 ning in 10-15 days. 



Bouillon. Turbid, with a scum. 



Milk. Coagulated in 8 days. Nitrates reduced to nitrites. Indol not pro- 

 duced. Fermentes glucose, lactose, saccharose, dextrin, mannit, with the 

 production of acetic and succinic acids, CO 2 , H and alcohol. Decomposes 

 tartarates, with production of succinic and acetic acids, CO 2 and H. 



90. B. halophilus Russell 



Zeitsch. f. Hygiene, XI, 1891, 200. 



Morphology. Bacilli 0.7 : 1.5-3.5 //,. Grow only in gelatin ; best in sea-water 

 gelatin. 



Gelatin colonies. Round, grayish, white, translucent. 



Gtlatin stab. Liquefaction slow ; evaporation causes an empty funnel. Cul- 

 tures rendered alkaline, with much gas. 



Habitat. Sea water. 



