THE CLASSIFICATION OF BACTERIA 1 57 



93. Bact. vermiculosum (Zimmerman) 



B. vermiculosus Zimmerman : Die Bak. Nutz u. Trinkwasser, 1890. 



Morphology. Bacilli 0.8 : 1.5 yu, with a capsule. Grow at 37 C. 



Gelatin colonies. Deep: round, gray, granular. Surface: spreading, lobed, 



marmorated. Gelatin slowly liquefied. 

 Agar slant. Growth moist, opalescent. 

 Potato. Growth yellowish gray, glistening. 

 Habitat. Water. 



94. Bact. incannum (Pohl) 



B. incannus Pohl: Centralblatt f. Bakteriol., 1892, 142; Dyar, I.e. 



Morphology. Bacilli 0.4-0.5 : 0.6-1.0 /i; in chains. Gelatin liquefied slowly. 



Agar slant. Growth translucent, white, streaked. 



Pepton-rosolic acid. Unchanged. 



Milk. Not coagulated. 



Litmus milk. No acid. 



Habitat. Isolated from a leaf of Sarracenia purpurea. 



95. Bact. truncatum 



B. No. ^r//Adametz: Landw. Jahrbucher, XVIII, 1889. 



Morphology. Bacilli, 0.7-0.9 : 1.4-2.0 /x, ends truncate, often in filaments. 

 Gelatin colonies. In 4 days small, dirty, white, punctiform, surrounded by a 



zone of liquefied gelatin, becoming thin, irregular disks, lying in basins 



of liquefied gelatin ; microscopically, at first round, entire, brownish, 



becoming irregular. 

 Gelatin stab. Growth on the surface thin, yellowish white, under which a 



slow liquefaction occurs. 

 Milk. Coagulated and peptonized. 

 Habitat. Isolated from Emmenthaler cheese. 



96. Bact. orchiticum (Kruse) 



Bacillus zur Rotzdiagnose : Zeitsch. f. Hygiene, XXI, 1896, 156. 

 B. orchiticus Kruse : Fliigge, Die Mikroorganismen, 1896, 455. 



Morphology. Bacilli like those of glanders. 

 Gelatin colonies. Like old cholera colonies. 

 Agar slant. Growth dense, white. 

 Blood serum. An orange pigment. 

 Bouillon. Turbid; no sediment. 



