FAMILY ACHKO.MOBACTEKIACEAE 



43; 



Broth : Turbid, slight sediment . Faint 

 fruity aroma. 



Litmus milk: Peptonized. Cheesy 

 odor. 



Potato: Abundant growth. Disagree- 

 able odor. 



Loeffler's blood serum: Liquefied. 



Indole not formed. 



Nitrites not produced from nitrates. 



Ammonia formed. 



Hydrogen sulfide formed. 



Fat hj^drolyzed. 



Methylene blue reduced. 



No acid from carbohj-drates. 



Aerobic, facultative. 



Optimum temperature 30°C. 



Source : Accidental contaminant in rab- 

 bit brain containing rabies virus. 



Habitat : Presumably widely distrib- 

 uted . 



2L Flavobacterium balustinum Harri- 

 son. (Canadian Jour. Research, /. 1929, 

 234.) 



Rods : 0.6 by 2.0 to 4.0 microns, forming 

 short chains. Non-motile. Gram -nega- 

 tive. 



Gelatin colonies: Circular, bright yel- 

 low center, entire. 



Gelatin stab: Liquefied. 



Agar colonies: Punctiform, cadmium- 

 yellow, convex, shiny, transparent. 



Agar slant : Egg yolk-yellow, semi- 

 transparent streak, smooth, shiny, be- 

 coming brownish -yellow. 



Ammonium phosphate agar : Slight yel- 

 low growth. 



Broth: Turbid, with yellow sediment. 



Litmus milk : Slightly acid with yellow 

 SBdiment. 



Potato : Scant, yellow growth. 



Indole not formed. 



Nitrites (trace) produced from ni- 

 trates. Ammonia not formed. 



Faint acidity from glucose. No action 

 on lactose or sucrose. 



Loeffler's blood serum not liquefied. 

 Egg yolk-like growth. 



No H2S formed. 



Aerobic, facultative. 



Optimum temperature 20° to 25°C. 



Source : Isolated from living halibut 

 obtained at 30 to 50 fathoms. Pacific 

 Ocean. 



Habitat : Skin of fishes. 



22. Flavobacterium dormitator 



(Wright) Bergey et al. {Bacillus dormi- 

 tator Wright, Memoirs Nat. Acad. Sci., 7, 

 1895, 442; Bacterium dormitator Chester, 

 Ann. Rept. Del. Agr. Exp.'Sta., 9, 1897, 

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

 115.) From Latin dormitator, one who 

 sleeps. 



Description completed from Harrison 

 (Canadian Jour. Res., 1, 1929, 233) whose 

 cultures differed in some particulars 

 from Wright's. 



Rods with conical ends, occurring 

 singly, in pairs and in chains. Non-mo- 

 tile. Gram-negative (Harrison). 



Gelatin colonies : Small, yellow, slightly 

 granular, liquefying. 



Gelatin stab: Infundibuliform lique- 

 faction, yellow sediment. 



Agar slant : Yellow, glistening, translu- 

 cent . 



Ammonium phosphate agar: Slight yel- 

 low growth. 



Broth: Turbid, with slight pellicle and 

 yellow sediment. 



Litmus milk: Slightly acid; litmus re- 

 duced. Harrison reports no reduction. 



Potato: Slight, transparent, yellow 

 growth. 



Indole not formed (Harrison). 



Nitrite (trace) produced from nitrates 

 (Harrison). 



Acid from glucose, sucrose, glycerol and 

 mannitol. No acid from lactose, raffinose, 

 and inulin (Harrison). 



Aerobic, facultative. 



Optimum temperature 30^C. 



Source : Originally isolated from fresh 

 water at Philadelphia. Later isolated by 

 Harrison (loc. cit.) from skin of halibut 

 taken in Pacific ocean off Canada. Gib- 

 bons (Contrib. to Canadian Biol, and 

 Fish., 8, No. 22, 1934, 279) reports this 



