234 BACTERIOLOGY 



73. B. stoloniferus Pohl 



Centralblatt f. Bakteriologie, XI, 1892, 142. 

 Morphology. Bacilli 0.8-1.2 p. 

 Gelatin colonies. Round ; borders sharp. 

 Gelatin stab. A funnel. 



Agar slant. Growth white, thick, with streaming outgrowths. 

 Potato. Growth of small, pin-head colonies, which are spreading. 

 Lactose bouillon. No gas. 

 Litmus gelatin . Red. ( 

 Milk. Amphoteric. 



Litmus milk. Unchanged in 24 days. Indol and phenol negative. Non- 

 pathogenic. 

 Habitat. Swamp water. 



74. B. antenniformis Ravenel 



l.c., 25. 

 Morphology. Bacilli large straight rods with rounded ends, 8-10 times their 



breadth ; occur singly. Actively motile. 

 Gelatin colonies. The deep colonies, oval, yellowish, granular ; from the poles 



fine short projections like the antennas of insects, disappearing in 36 hours. 



Surface colonies small, with orange-brown centres, with a fringe of wavy 



lines ; border colorless, of parallel filaments, dentate ; liquefaction crateri- 



form, with a pellicle, becoming folded. In 7 days the colonies are 6 mm. 



in diameter, circular, with entire borders. 

 Gelatin stab. Crateriform, becoming stratiform. 

 Agar slant. Growth thin, smooth, grayish. 

 Potato. Growth invisible in 2 days ; in 3-4 days the growth is spreading, and 



thrown into fine folds like herpetic vesicles, becoming putty-colored and 



dryer, and folds more numerous. 

 Bouillon. Scanty growth. 



Litmus milk. Decolorized, becoming watery and slightly acid. Indol negative. 

 Habitat. , Water. 



75. B. bucalis Sternberg 



B.j Vignal: Archiv Phys., VIII, 1886, 342. 



B. bucalis-fortuitus Sternberg : Manual of Bacteriology, 1892, 685. 



Morphology. Bacilli with square ends, 1 .4-3.0 /x, often in pairs joined at an 



angle. 

 Gelatin colonies. In 48 hours small, round, white, becoming liquefied in 4-5 



days. 



