FAMILY ACHROMOBACTERIACEAE 



431 



Aerobic, facultative. 



Optimum temperature 25° to 30°C. 



Source : From water at Chemnitz (Zim- 

 mermann). From water (Bergey). 

 From alimentary tract of the nine-spotted 

 lady beetle {Coccinella novemnotata 

 Habst.) (Steinhaus). 



Habitat : Water. 



6. Flavobacterium marinotypicum Zo- 

 Bell and Upham. (Bull. Scripps Inst, of 

 Oceanography, Univ. Calif., 5, 1944, 268.) 

 From Latin jnan?) MS, of the sea and lypi- 

 cus, typical. 



Rods: 0.5 to 0.7 by 1.4 to 2.0 microns, 

 occurring almost entirely as single cells. 

 Motile by means of four or more peri- 

 trichous flagella. Gram-negative. 



All media except the fresh-water broth, 

 litmus milk, and potato were prepared 

 with sea water. 



Gelatin colonies: Very minute, yellow, 

 with slow liquefaction. 



Gelatin stab : Crateriform liquefaction 

 t)ecoming stratiform. Filiform along line 

 of stab. 



Agar colonies : Minute, circular, entire, 

 convex, yellow. 



Agar slant: Scanty, filiform, butyrous, 

 shiny growth with yellow pigment. 



Sea-water broth: Scanty, yellowish 

 pellicle, heavy turbidity, slight viscid 

 sediment . 



Fresh-water broth : Good growth. 



Litmus milk: Decolorized, neutral, 

 greenish pellicle, slow peptonization. 



Potato: Abundant, shiny, greenish-yel- 

 low growth. Potato darkened. 



Indole not formed. 



Nitrites not produced from nitrates. 



Produces acid but no gas from glucose 

 and glycerol. Does not ferment lactose, 

 sucrose, mannitol, xylose, or salicin. 



Starch not hydrolyzed. 



Hydrogen sulfide is formed. 



Ammonia produced from peptone but 

 not from urea. 



Fats not hydrolyzed. 



.\erobic, facultative. 



Optimum temperature 20° to 25°C. 

 Source : Sea water and marine mud. 

 Habitat : Sea water. 



7. Flavobacterium marinovirosum Zo- 

 Bell and L^pham. (Bull. Scripps. Inst, 

 of Oceanography, Univ. Calif., 5, 1944, 

 271.) From Latin marinus, of the sea, 

 and virosus, covered with slimy liquid or 

 ooze. 



Rods: 0.7 to 0.8 by 0.8 to 2.8 microns, 

 with rounded ends, occurring singly and 

 in long chains. Motile by means of peri- 

 trichous flagella. Gram-negative. 



All media except the fresh-water broth, 

 litmus milk, and potato were prepared 

 with sea water. 



Gelatin colonies: Small, circular, 

 raised, rust-colored. Slowly digest gel- 

 atin. 



Gelatin stab : Crateriform liquefaction 

 becoming stratiform. Light orange pig- 

 ment. 



Agar colonies : 1 to 2 mm, circular, con- 

 vex, entire, smooth. 



Agar slant: Moderate, filiform, glisten- 

 ing, mucoid growth with grayish-yellow 

 pigment . 



Sea -water broth: Heavy turbidity, no 

 pellicle, abundant viscid sediment. 



Fresh-water broth: Good growth. 



Litmus milk: No visible change. 

 Casein is digested. 



Potato: No visible growth. 



Indole not formed. 



Nitrites not produced from nitrates. 



Does not ferment glycerol, glucose, 

 lactose, maltose, sucrose, mannitol, 

 xylose, or salicin. 



Starch not hydrolyzed. 



Hydrogen sulfide is formed. 



Ammonia produced from peptone but 

 not from urea. 



Fats not hydrolyzed. 



Aerobic, facultative. 



Optimum temperature 20° to 25°C. 



Source : Sea water and marine mud. 



Habitat: Sea water. 



8. Flavobacterium halohydrixxm ZoBell 

 and Upham. (Bull. Scripps Inst, of 



