FAMILY III. ACHROMOBACTERACEAE 



321 



de'vo.rans. L. part. adj. devorans consum- 

 ing, devouring. 



Original description supplemented by 

 Berge}' (loc. cit.) from his private notes as 

 indicated. 



Rods, 0.7 by 0.9 to 1.2 microns, occurring 

 singly, in pairs and in chains. Motile (Zim- 

 mermann) by means of peritrichous flagella 

 (Bergey). Gram-negative (Zimmermann). 



Gelatin colonies: Circular, white, granu- 

 lar to filamentous, becoming yellowish gra.y. 



Gelatin stab : Slow, infundibuliform lique- 

 faction. 



Agar slant: Thin, gray, spreading growth. 



Broth: Turbid. 



Litmus milk: Unchanged. 



Potato: No growth (Zimmermann). Yel- 

 lowish gray streak (Bergey). 



Indole not produced. 



Nitrites not produced from nitrates 

 (Bergey) . 



Aerobic, facultatively anaerobic. 



Optimum temperature, between 25° and 

 30° C. 



Source: Isolated from water at Chemnitz 

 (Zimmermann). From water (Bergey). 

 From the alimentary tract of the nine- 

 spotted lady beetle {Coccinella novemnotata 

 Habst.) (Steinhaus, Jour. Bact., 42, 1941, 

 764). 



24. Flavobacteriuni invisibile (Vaughan, 

 1892) Bergey etal., 1923. (Bacillus invisibilis 

 Vaughan, American Jour. Med. Sci., IO4, 

 1892, 191; Flavobacterium invisibilis (sic) 

 Bergey et al., Manual, 1st ed., 1923, 109.) 



in.vi.si'bi.le. L. adj. invisibilis invisible. 



Rods, 0.6 to 0.7 by 1.2 to 2.0 microns, oc- 

 curring singly. Motile by means of peritri- 

 chous flagella. Gram-negative. 



Gelatin colonies: Pale yellow, burr-like, 

 with irregular margin. 



Gelatin stab: Scant growth on surface. 

 Good growth in stab. No liquefaction. 



Agar colonies: White, convex, smooth, 

 serrate. 



Agar slant: Limited, thick, white streak. 



Broth: Turbid. 



Litmus milk: Unchanged. 



Potato: No growth. 



Indole not produced. 



Nitrites not produced from nitrates. 



Aerobic, facultatively anaerobic. 



Optimum temperature, 35° C. 

 Habitat: Water. 



25. Flavobacterium niarinotypicum 



ZoBell and Upham, 1944. (Bull. Scripps 

 Inst, of Oceanography, Univ. of Calif., 5, 

 1944, 268.) 



ma.ri.no.ty'pi.cum. L. adj. marinus of 

 the sea; Gr. adj. typicus conformable, tj-pi- 

 cal; M.L. adj. marinotypims probably in- 

 tended to mean typical of the sea. 



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 peritrichous 

 flagella. Gram-negative. 



All media except the fresh -water broth, 

 litmus milk and potato were prepared with 

 sea water. 



Gelatin colonies : Very minute and yellow ; 

 slow liquefaction. 



Gelatin stab: Crateriform liquefaction 

 becoming stratiform. Filiform along line 

 of stab. 



Agar colonies: Minute, circular, entire, 

 convex, yellow. 



Agar slant: Scant, filiform, butyrous, 

 shiny growth with yellow pigment. 



Sea-water broth : Scant, yellowish pellicle ; 

 heavy turbidity; slight, viscid sediment. 



Fresh-water broth: Good growth. 



Litmus milk: Decolorized; neutral; green- 

 ish pellicle; slow peptonization. 



Potato: Abundant, shiny, greenish yellow 

 growth. Potato darkened. 



Indole not produced. 



Hydrogen sulfide is produced. 



Acid but no gas from glucose and glycerol. 

 Does not ferment lactose, sucrose, mannitol, 

 xylose or salicin. 



Starch not hydrolyzed. 



Non-lipolytic. 



Nitrites not produced from nitrates. 



Ammonia produced from peptone but not 

 from urea. 



Aerobic, facultatively anaerobic. 



Optimum temperature, between 20° and 

 25° C. 



Source: Isolated from sea water and ma- 

 rine mud. 



Habitat: Sea water. 



26. Flavobacteriuni piscicida Bein, 



