THE CLASSIFICATION OF BACTERIA 171 



Milk. Not coagulated. 

 Pepton-rosolic acid. Unchanged. 

 Habitat. Air. 



130. Bact. palidor (Dyar) 



B.fuscus-palidor Dyar : I.e., 361. 

 Morphology. Bacilli 0.5-0.7 : 1. 0-1.3 ft; occur singly and in chains. 

 On solid media. Growth pale, whitish, orange, almost pinkish, wrinkled, 



with lobed edges ; a crusty, brittle texture. 

 On liquid media. A surface membrane. 

 Litmus milk. Blue. 

 Habitat. Air. 



131. Bact. ovale (Wright) 



B. ovalts Wright : I.e., 435. 



Morphology . Bacilli medium-sized, short, rounded ; in pairs and as filaments. 



Gelatin colonies. Deep : opaque, granular, entire, brownish. Surface : in 

 5-6 days, 1 mm., round, entire, elevated, glistening, yellowish, translu- 

 cent, becoming yellow brownish yellow : gelatin slightly brownish. 



Gelatin slant. Growth elevated, brownish yellow, limited, smooth rugged ; 

 gelatin assumes a brownish tint. 



Agar slant. Growth pale yellow, thick, glistening, limited. 



Bouillon. Clear, with a sediment. 



Potato. Growth brownish yellow, moist, spreading, viscid. 



Litmus milk. Decolorized, not coagulated. Indol. A slight reaction. No 

 growth at 36 C. 



Glucose bouillon. No gas. 



Habitat. Water. 



132. Bact. luteum List 



Adametz, Bakt. Nutz u. Trinkwasser, 1888. 



Morphology. Bacilli I.I : 1.3 fi. Optimum temperature 30 C. 



Gelatin colonies. Irregular, flat, consisting of many clavate coarse granular 



zobgloea masses : orange-yellow. 

 Milk. Coagulated. 

 Habitat. Water. 



133. Bact. striatum (v. Besser) 



B. itriatu s-Jlavus v. Besser : Ziegler's Beitriige, VL 

 Morphology. Bacilli small, often bent. 

 Gelatin colonies. Thick, dry, granular, yellow. 

 Agar slant and potato. Growth sulphur-yellow. 

 Habitat. Isolated from nasal mucus. 



